31309240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1123}}^1$

素因数の和:1192

約数の個数: 64

約数和(自身を含む): 76476960

約数和(自身を除く): 45167720

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 68, 82, 85, 136, 164, 170, 205, 328, 340, 410, 680, 697, 820, 1123, 1394, 1640, 2246, 2788, 3485, 4492, 5576, 5615, 6970, 8984, 11230, 13940, 19091, 22460, 27880, 38182, 44920, 46043, 76364, 92086, 95455, 152728, 184172, 190910, 230215, 368344, 381820, 460430, 763640, 782731, 920860, 1565462, 1841720, 3130924, 3913655, 6261848, 7827310, 15654620, 31309240]

約数ペア:

[(1, 31309240), (2, 15654620), (4, 7827310), (5, 6261848), (8, 3913655), (10, 3130924), (17, 1841720), (20, 1565462), (34, 920860), (40, 782731), (41, 763640), (68, 460430), (82, 381820), (85, 368344), (136, 230215), (164, 190910), (170, 184172), (205, 152728), (328, 95455), (340, 92086), (410, 76364), (680, 46043), (697, 44920), (820, 38182), (1123, 27880), (1394, 22460), (1640, 19091), (2246, 13940), (2788, 11230), (3485, 8984), (4492, 6970), (5576, 5615)]