31513720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3881}}^1$

素因数の和:3928

約数の個数: 64

約数和(自身を含む): 83851200

約数和(自身を除く): 52337480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1624, 2030, 3881, 4060, 7762, 8120, 15524, 19405, 27167, 31048, 38810, 54334, 77620, 108668, 112549, 135835, 155240, 217336, 225098, 271670, 450196, 543340, 562745, 787843, 900392, 1086680, 1125490, 1575686, 2250980, 3151372, 3939215, 4501960, 6302744, 7878430, 15756860, 31513720]

約数ペア:

[(1, 31513720), (2, 15756860), (4, 7878430), (5, 6302744), (7, 4501960), (8, 3939215), (10, 3151372), (14, 2250980), (20, 1575686), (28, 1125490), (29, 1086680), (35, 900392), (40, 787843), (56, 562745), (58, 543340), (70, 450196), (116, 271670), (140, 225098), (145, 217336), (203, 155240), (232, 135835), (280, 112549), (290, 108668), (406, 77620), (580, 54334), (812, 38810), (1015, 31048), (1160, 27167), (1624, 19405), (2030, 15524), (3881, 8120), (4060, 7762)]