667940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{367}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 1731072

約数和(自身を除く): 1063132

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 367, 455, 734, 910, 1468, 1820, 1835, 2569, 3670, 4771, 5138, 7340, 9542, 10276, 12845, 19084, 23855, 25690, 33397, 47710, 51380, 66794, 95420, 133588, 166985, 333970, 667940]

約数ペア:

[(1, 667940), (2, 333970), (4, 166985), (5, 133588), (7, 95420), (10, 66794), (13, 51380), (14, 47710), (20, 33397), (26, 25690), (28, 23855), (35, 19084), (52, 12845), (65, 10276), (70, 9542), (91, 7340), (130, 5138), (140, 4771), (182, 3670), (260, 2569), (364, 1835), (367, 1820), (455, 1468), (734, 910)]