20620320

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2$

素因数の和:80

約数の個数: 288

約数和(自身を含む): 82954368

約数和(自身を除く): 62334048

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 17, 19, 20, 21, 24, 28, 30, 32, 34, 35, 38, 40, 42, 48, 51, 56, 57, 60, 68, 70, 76, 80, 84, 85, 95, 96, 102, 105, 112, 114, 119, 120, 133, 136, 140, 152, 160, 168, 170, 190, 204, 210, 224, 228, 238, 240, 255, 266, 272, 280, 285, 304, 323, 336, 340, 357, 361, 380, 399, 408, 420, 456, 476, 480, 510, 532, 544, 560, 570, 595, 608, 646, 665, 672, 680, 714, 722, 760, 798, 816, 840, 912, 952, 969, 1020, 1064, 1083, 1120, 1140, 1190, 1292, 1330, 1360, 1428, 1444, 1520, 1596, 1615, 1632, 1680, 1785, 1805, 1824, 1904, 1938, 1995, 2040, 2128, 2166, 2261, 2280, 2380, 2527, 2584, 2660, 2720, 2856, 2888, 3040, 3192, 3230, 3360, 3570, 3610, 3808, 3876, 3990, 4080, 4256, 4332, 4522, 4560, 4760, 4845, 5054, 5168, 5320, 5415, 5712, 5776, 6137, 6384, 6460, 6783, 7140, 7220, 7581, 7752, 7980, 8160, 8664, 9044, 9120, 9520, 9690, 10108, 10336, 10640, 10830, 11305, 11424, 11552, 12274, 12635, 12768, 12920, 13566, 14280, 14440, 15162, 15504, 15960, 17328, 18088, 18411, 19040, 19380, 20216, 21280, 21660, 22610, 24548, 25270, 25840, 27132, 28560, 28880, 30324, 30685, 31008, 31920, 33915, 34656, 36176, 36822, 37905, 38760, 40432, 42959, 43320, 45220, 49096, 50540, 51680, 54264, 57120, 57760, 60648, 61370, 63840, 67830, 72352, 73644, 75810, 77520, 80864, 85918, 86640, 90440, 92055, 98192, 101080, 108528, 121296, 122740, 128877, 135660, 147288, 151620, 155040, 171836, 173280, 180880, 184110, 196384, 202160, 214795, 217056, 242592, 245480, 257754, 271320, 294576, 303240, 343672, 361760, 368220, 404320, 429590, 490960, 515508, 542640, 589152, 606480, 644385, 687344, 736440, 859180, 981920, 1031016, 1085280, 1212960, 1288770, 1374688, 1472880, 1718360, 2062032, 2577540, 2945760, 3436720, 4124064, 5155080, 6873440, 10310160, 20620320]

約数ペア:

[(1, 20620320), (2, 10310160), (3, 6873440), (4, 5155080), (5, 4124064), (6, 3436720), (7, 2945760), (8, 2577540), (10, 2062032), (12, 1718360), (14, 1472880), (15, 1374688), (16, 1288770), (17, 1212960), (19, 1085280), (20, 1031016), (21, 981920), (24, 859180), (28, 736440), (30, 687344), (32, 644385), (34, 606480), (35, 589152), (38, 542640), (40, 515508), (42, 490960), (48, 429590), (51, 404320), (56, 368220), (57, 361760), (60, 343672), (68, 303240), (70, 294576), (76, 271320), (80, 257754), (84, 245480), (85, 242592), (95, 217056), (96, 214795), (102, 202160), (105, 196384), (112, 184110), (114, 180880), (119, 173280), (120, 171836), (133, 155040), (136, 151620), (140, 147288), (152, 135660), (160, 128877), (168, 122740), (170, 121296), (190, 108528), (204, 101080), (210, 98192), (224, 92055), (228, 90440), (238, 86640), (240, 85918), (255, 80864), (266, 77520), (272, 75810), (280, 73644), (285, 72352), (304, 67830), (323, 63840), (336, 61370), (340, 60648), (357, 57760), (361, 57120), (380, 54264), (399, 51680), (408, 50540), (420, 49096), (456, 45220), (476, 43320), (480, 42959), (510, 40432), (532, 38760), (544, 37905), (560, 36822), (570, 36176), (595, 34656), (608, 33915), (646, 31920), (665, 31008), (672, 30685), (680, 30324), (714, 28880), (722, 28560), (760, 27132), (798, 25840), (816, 25270), (840, 24548), (912, 22610), (952, 21660), (969, 21280), (1020, 20216), (1064, 19380), (1083, 19040), (1120, 18411), (1140, 18088), (1190, 17328), (1292, 15960), (1330, 15504), (1360, 15162), (1428, 14440), (1444, 14280), (1520, 13566), (1596, 12920), (1615, 12768), (1632, 12635), (1680, 12274), (1785, 11552), (1805, 11424), (1824, 11305), (1904, 10830), (1938, 10640), (1995, 10336), (2040, 10108), (2128, 9690), (2166, 9520), (2261, 9120), (2280, 9044), (2380, 8664), (2527, 8160), (2584, 7980), (2660, 7752), (2720, 7581), (2856, 7220), (2888, 7140), (3040, 6783), (3192, 6460), (3230, 6384), (3360, 6137), (3570, 5776), (3610, 5712), (3808, 5415), (3876, 5320), (3990, 5168), (4080, 5054), (4256, 4845), (4332, 4760), (4522, 4560)]