20605280280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1\times {\mathrm{971}}^1$

素因数の和:1282

約数の個数: 256

約数和(自身を含む): 68035645440

約数和(自身を除く): 47430365160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 61, 65, 78, 104, 120, 122, 130, 156, 183, 195, 223, 244, 260, 305, 312, 366, 390, 446, 488, 520, 610, 669, 732, 780, 793, 892, 915, 971, 1115, 1220, 1338, 1464, 1560, 1586, 1784, 1830, 1942, 2230, 2379, 2440, 2676, 2899, 2913, 3172, 3345, 3660, 3884, 3965, 4460, 4758, 4855, 5352, 5798, 5826, 6344, 6690, 7320, 7768, 7930, 8697, 8920, 9516, 9710, 11596, 11652, 11895, 12623, 13380, 13603, 14495, 14565, 15860, 17394, 19032, 19420, 23192, 23304, 23790, 25246, 26760, 27206, 28990, 29130, 31720, 34788, 37869, 38840, 40809, 43485, 47580, 50492, 54412, 57980, 58260, 59231, 63115, 68015, 69576, 75738, 81618, 86970, 95160, 100984, 108824, 115960, 116520, 118462, 126230, 136030, 151476, 163236, 173940, 176839, 177693, 189345, 204045, 216533, 236924, 252460, 272060, 296155, 302952, 326472, 347880, 353678, 355386, 378690, 408090, 433066, 473848, 504920, 530517, 544120, 592310, 649599, 707356, 710772, 757380, 770003, 816180, 866132, 884195, 888465, 1061034, 1082665, 1184620, 1299198, 1414712, 1421544, 1514760, 1540006, 1632360, 1732264, 1768390, 1776930, 2122068, 2165330, 2310009, 2369240, 2598396, 2652585, 2814929, 3080012, 3247995, 3536780, 3553860, 3850015, 4244136, 4330660, 4620018, 5196792, 5305170, 5629858, 6160024, 6495990, 7073560, 7107720, 7700030, 8444787, 8661320, 9240036, 10610340, 11259716, 11550045, 12991980, 13208513, 14074645, 15400060, 16889574, 18480072, 21220680, 22519432, 23100090, 25983960, 26417026, 28149290, 30800120, 33779148, 39625539, 42223935, 46200180, 52834052, 56298580, 66042565, 67558296, 79251078, 84447870, 92400360, 105668104, 112597160, 132085130, 158502156, 168895740, 171710669, 198127695, 264170260, 317004312, 337791480, 343421338, 396255390, 515132007, 528340520, 686842676, 792510780, 858553345, 1030264014, 1373685352, 1585021560, 1717106690, 2060528028, 2575660035, 3434213380, 4121056056, 5151320070, 6868426760, 10302640140, 20605280280]

約数ペア:

[(1, 20605280280), (2, 10302640140), (3, 6868426760), (4, 5151320070), (5, 4121056056), (6, 3434213380), (8, 2575660035), (10, 2060528028), (12, 1717106690), (13, 1585021560), (15, 1373685352), (20, 1030264014), (24, 858553345), (26, 792510780), (30, 686842676), (39, 528340520), (40, 515132007), (52, 396255390), (60, 343421338), (61, 337791480), (65, 317004312), (78, 264170260), (104, 198127695), (120, 171710669), (122, 168895740), (130, 158502156), (156, 132085130), (183, 112597160), (195, 105668104), (223, 92400360), (244, 84447870), (260, 79251078), (305, 67558296), (312, 66042565), (366, 56298580), (390, 52834052), (446, 46200180), (488, 42223935), (520, 39625539), (610, 33779148), (669, 30800120), (732, 28149290), (780, 26417026), (793, 25983960), (892, 23100090), (915, 22519432), (971, 21220680), (1115, 18480072), (1220, 16889574), (1338, 15400060), (1464, 14074645), (1560, 13208513), (1586, 12991980), (1784, 11550045), (1830, 11259716), (1942, 10610340), (2230, 9240036), (2379, 8661320), (2440, 8444787), (2676, 7700030), (2899, 7107720), (2913, 7073560), (3172, 6495990), (3345, 6160024), (3660, 5629858), (3884, 5305170), (3965, 5196792), (4460, 4620018), (4758, 4330660), (4855, 4244136), (5352, 3850015), (5798, 3553860), (5826, 3536780), (6344, 3247995), (6690, 3080012), (7320, 2814929), (7768, 2652585), (7930, 2598396), (8697, 2369240), (8920, 2310009), (9516, 2165330), (9710, 2122068), (11596, 1776930), (11652, 1768390), (11895, 1732264), (12623, 1632360), (13380, 1540006), (13603, 1514760), (14495, 1421544), (14565, 1414712), (15860, 1299198), (17394, 1184620), (19032, 1082665), (19420, 1061034), (23192, 888465), (23304, 884195), (23790, 866132), (25246, 816180), (26760, 770003), (27206, 757380), (28990, 710772), (29130, 707356), (31720, 649599), (34788, 592310), (37869, 544120), (38840, 530517), (40809, 504920), (43485, 473848), (47580, 433066), (50492, 408090), (54412, 378690), (57980, 355386), (58260, 353678), (59231, 347880), (63115, 326472), (68015, 302952), (69576, 296155), (75738, 272060), (81618, 252460), (86970, 236924), (95160, 216533), (100984, 204045), (108824, 189345), (115960, 177693), (116520, 176839), (118462, 173940), (126230, 163236), (136030, 151476)]