393797960

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{233}}^1$

素因数の和:351

約数の個数: 128

約数和(自身を含む): 970444800

約数和(自身を除く): 576646840

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 47, 58, 62, 94, 116, 124, 145, 155, 188, 232, 233, 235, 248, 290, 310, 376, 466, 470, 580, 620, 899, 932, 940, 1160, 1165, 1240, 1363, 1457, 1798, 1864, 1880, 2330, 2726, 2914, 3596, 4495, 4660, 5452, 5828, 6757, 6815, 7192, 7223, 7285, 8990, 9320, 10904, 10951, 11656, 13514, 13630, 14446, 14570, 17980, 21902, 27028, 27260, 28892, 29140, 33785, 35960, 36115, 42253, 43804, 54056, 54520, 54755, 57784, 58280, 67570, 72230, 84506, 87608, 109510, 135140, 144460, 169012, 209467, 211265, 219020, 270280, 288920, 317579, 338024, 339481, 418934, 422530, 438040, 635158, 678962, 837868, 845060, 1047335, 1270316, 1357924, 1587895, 1675736, 1690120, 1697405, 2094670, 2540632, 2715848, 3175790, 3394810, 4189340, 6351580, 6789620, 8378680, 9844949, 12703160, 13579240, 19689898, 39379796, 49224745, 78759592, 98449490, 196898980, 393797960]

約数ペア:

[(1, 393797960), (2, 196898980), (4, 98449490), (5, 78759592), (8, 49224745), (10, 39379796), (20, 19689898), (29, 13579240), (31, 12703160), (40, 9844949), (47, 8378680), (58, 6789620), (62, 6351580), (94, 4189340), (116, 3394810), (124, 3175790), (145, 2715848), (155, 2540632), (188, 2094670), (232, 1697405), (233, 1690120), (235, 1675736), (248, 1587895), (290, 1357924), (310, 1270316), (376, 1047335), (466, 845060), (470, 837868), (580, 678962), (620, 635158), (899, 438040), (932, 422530), (940, 418934), (1160, 339481), (1165, 338024), (1240, 317579), (1363, 288920), (1457, 270280), (1798, 219020), (1864, 211265), (1880, 209467), (2330, 169012), (2726, 144460), (2914, 135140), (3596, 109510), (4495, 87608), (4660, 84506), (5452, 72230), (5828, 67570), (6757, 58280), (6815, 57784), (7192, 54755), (7223, 54520), (7285, 54056), (8990, 43804), (9320, 42253), (10904, 36115), (10951, 35960), (11656, 33785), (13514, 29140), (13630, 28892), (14446, 27260), (14570, 27028), (17980, 21902)]