20919396240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{4079}}^1$

素因数の和:4534

約数の個数: 240

約数和(自身を含む): 74582726400

約数和(自身を除く): 53663330160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 34, 36, 40, 45, 48, 51, 60, 68, 72, 80, 85, 90, 102, 120, 136, 144, 153, 170, 180, 204, 240, 255, 272, 306, 340, 360, 408, 419, 510, 612, 680, 720, 765, 816, 838, 1020, 1224, 1257, 1360, 1530, 1676, 2040, 2095, 2448, 2514, 3060, 3352, 3771, 4079, 4080, 4190, 5028, 6120, 6285, 6704, 7123, 7542, 8158, 8380, 10056, 12237, 12240, 12570, 14246, 15084, 16316, 16760, 18855, 20112, 20395, 21369, 24474, 25140, 28492, 30168, 32632, 33520, 35615, 36711, 37710, 40790, 42738, 48948, 50280, 56984, 60336, 61185, 64107, 65264, 69343, 71230, 73422, 75420, 81580, 85476, 97896, 100560, 106845, 113968, 122370, 128214, 138686, 142460, 146844, 150840, 163160, 170952, 183555, 195792, 208029, 213690, 244740, 256428, 277372, 284920, 293688, 301680, 320535, 326320, 341904, 346715, 367110, 416058, 427380, 489480, 512856, 554744, 569840, 587376, 624087, 641070, 693430, 734220, 832116, 854760, 978960, 1025712, 1040145, 1109488, 1248174, 1282140, 1386860, 1468440, 1664232, 1709101, 1709520, 2080290, 2496348, 2564280, 2773720, 2936880, 3120435, 3328464, 3418202, 4160580, 4992696, 5127303, 5128560, 5547440, 6240870, 6836404, 8321160, 8545505, 9985392, 10254606, 12481740, 13672808, 15381909, 16642320, 17091010, 20509212, 24963480, 25636515, 27345616, 29054717, 30763818, 34182020, 41018424, 49926960, 51273030, 58109434, 61527636, 68364040, 76909545, 82036848, 87164151, 102546060, 116218868, 123055272, 136728080, 145273585, 153819090, 174328302, 205092120, 232437736, 246110544, 261492453, 290547170, 307638180, 348656604, 410184240, 435820755, 464875472, 522984906, 581094340, 615276360, 697313208, 871641510, 1045969812, 1162188680, 1230552720, 1307462265, 1394626416, 1743283020, 2091939624, 2324377360, 2614924530, 3486566040, 4183879248, 5229849060, 6973132080, 10459698120, 20919396240]

約数ペア:

[(1, 20919396240), (2, 10459698120), (3, 6973132080), (4, 5229849060), (5, 4183879248), (6, 3486566040), (8, 2614924530), (9, 2324377360), (10, 2091939624), (12, 1743283020), (15, 1394626416), (16, 1307462265), (17, 1230552720), (18, 1162188680), (20, 1045969812), (24, 871641510), (30, 697313208), (34, 615276360), (36, 581094340), (40, 522984906), (45, 464875472), (48, 435820755), (51, 410184240), (60, 348656604), (68, 307638180), (72, 290547170), (80, 261492453), (85, 246110544), (90, 232437736), (102, 205092120), (120, 174328302), (136, 153819090), (144, 145273585), (153, 136728080), (170, 123055272), (180, 116218868), (204, 102546060), (240, 87164151), (255, 82036848), (272, 76909545), (306, 68364040), (340, 61527636), (360, 58109434), (408, 51273030), (419, 49926960), (510, 41018424), (612, 34182020), (680, 30763818), (720, 29054717), (765, 27345616), (816, 25636515), (838, 24963480), (1020, 20509212), (1224, 17091010), (1257, 16642320), (1360, 15381909), (1530, 13672808), (1676, 12481740), (2040, 10254606), (2095, 9985392), (2448, 8545505), (2514, 8321160), (3060, 6836404), (3352, 6240870), (3771, 5547440), (4079, 5128560), (4080, 5127303), (4190, 4992696), (5028, 4160580), (6120, 3418202), (6285, 3328464), (6704, 3120435), (7123, 2936880), (7542, 2773720), (8158, 2564280), (8380, 2496348), (10056, 2080290), (12237, 1709520), (12240, 1709101), (12570, 1664232), (14246, 1468440), (15084, 1386860), (16316, 1282140), (16760, 1248174), (18855, 1109488), (20112, 1040145), (20395, 1025712), (21369, 978960), (24474, 854760), (25140, 832116), (28492, 734220), (30168, 693430), (32632, 641070), (33520, 624087), (35615, 587376), (36711, 569840), (37710, 554744), (40790, 512856), (42738, 489480), (48948, 427380), (50280, 416058), (56984, 367110), (60336, 346715), (61185, 341904), (64107, 326320), (65264, 320535), (69343, 301680), (71230, 293688), (73422, 284920), (75420, 277372), (81580, 256428), (85476, 244740), (97896, 213690), (100560, 208029), (106845, 195792), (113968, 183555), (122370, 170952), (128214, 163160), (138686, 150840), (142460, 146844)]