31845680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12841}}^1$

素因数の和:12885

約数の個数: 40

約数和(自身を含む): 76435584

約数和(自身を除く): 44589904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 12841, 25682, 51364, 64205, 102728, 128410, 205456, 256820, 398071, 513640, 796142, 1027280, 1592284, 1990355, 3184568, 3980710, 6369136, 7961420, 15922840, 31845680]

約数ペア:

[(1, 31845680), (2, 15922840), (4, 7961420), (5, 6369136), (8, 3980710), (10, 3184568), (16, 1990355), (20, 1592284), (31, 1027280), (40, 796142), (62, 513640), (80, 398071), (124, 256820), (155, 205456), (248, 128410), (310, 102728), (496, 64205), (620, 51364), (1240, 25682), (2480, 12841)]