31781680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1$

素因数の和:171

約数の個数: 160

約数和(自身を含む): 92851200

約数和(自身を除く): 61069520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 29, 35, 38, 40, 56, 58, 70, 76, 80, 95, 103, 112, 116, 133, 140, 145, 152, 190, 203, 206, 232, 266, 280, 290, 304, 380, 406, 412, 464, 515, 532, 551, 560, 580, 665, 721, 760, 812, 824, 1015, 1030, 1064, 1102, 1160, 1330, 1442, 1520, 1624, 1648, 1957, 2030, 2060, 2128, 2204, 2320, 2660, 2755, 2884, 2987, 3248, 3605, 3857, 3914, 4060, 4120, 4408, 5320, 5510, 5768, 5974, 7210, 7714, 7828, 8120, 8240, 8816, 9785, 10640, 11020, 11536, 11948, 13699, 14420, 14935, 15428, 15656, 16240, 19285, 19570, 20909, 22040, 23896, 27398, 28840, 29870, 30856, 31312, 38570, 39140, 41818, 44080, 47792, 54796, 56753, 57680, 59740, 61712, 68495, 77140, 78280, 83636, 104545, 109592, 113506, 119480, 136990, 154280, 156560, 167272, 209090, 219184, 227012, 238960, 273980, 283765, 308560, 334544, 397271, 418180, 454024, 547960, 567530, 794542, 836360, 908048, 1095920, 1135060, 1589084, 1672720, 1986355, 2270120, 3178168, 3972710, 4540240, 6356336, 7945420, 15890840, 31781680]

約数ペア:

[(1, 31781680), (2, 15890840), (4, 7945420), (5, 6356336), (7, 4540240), (8, 3972710), (10, 3178168), (14, 2270120), (16, 1986355), (19, 1672720), (20, 1589084), (28, 1135060), (29, 1095920), (35, 908048), (38, 836360), (40, 794542), (56, 567530), (58, 547960), (70, 454024), (76, 418180), (80, 397271), (95, 334544), (103, 308560), (112, 283765), (116, 273980), (133, 238960), (140, 227012), (145, 219184), (152, 209090), (190, 167272), (203, 156560), (206, 154280), (232, 136990), (266, 119480), (280, 113506), (290, 109592), (304, 104545), (380, 83636), (406, 78280), (412, 77140), (464, 68495), (515, 61712), (532, 59740), (551, 57680), (560, 56753), (580, 54796), (665, 47792), (721, 44080), (760, 41818), (812, 39140), (824, 38570), (1015, 31312), (1030, 30856), (1064, 29870), (1102, 28840), (1160, 27398), (1330, 23896), (1442, 22040), (1520, 20909), (1624, 19570), (1648, 19285), (1957, 16240), (2030, 15656), (2060, 15428), (2128, 14935), (2204, 14420), (2320, 13699), (2660, 11948), (2755, 11536), (2884, 11020), (2987, 10640), (3248, 9785), (3605, 8816), (3857, 8240), (3914, 8120), (4060, 7828), (4120, 7714), (4408, 7210), (5320, 5974), (5510, 5768)]