640848

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1$

素因数の和:116

約数の個数: 60

約数和(自身を含む): 1815360

約数和(自身を除く): 1174512

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 79, 104, 156, 158, 169, 208, 237, 312, 316, 338, 474, 507, 624, 632, 676, 948, 1014, 1027, 1264, 1352, 1896, 2028, 2054, 2704, 3081, 3792, 4056, 4108, 6162, 8112, 8216, 12324, 13351, 16432, 24648, 26702, 40053, 49296, 53404, 80106, 106808, 160212, 213616, 320424, 640848]

約数ペア:

[(1, 640848), (2, 320424), (3, 213616), (4, 160212), (6, 106808), (8, 80106), (12, 53404), (13, 49296), (16, 40053), (24, 26702), (26, 24648), (39, 16432), (48, 13351), (52, 12324), (78, 8216), (79, 8112), (104, 6162), (156, 4108), (158, 4056), (169, 3792), (208, 3081), (237, 2704), (312, 2054), (316, 2028), (338, 1896), (474, 1352), (507, 1264), (624, 1027), (632, 1014), (676, 948)]