8705420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{739}}^1$

素因数の和:798

約数の個数: 48

約数和(自身を含む): 19891200

約数和(自身を除く): 11185780

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 739, 1178, 1478, 2356, 2945, 2956, 3695, 5890, 7390, 11780, 14041, 14780, 22909, 28082, 45818, 56164, 70205, 91636, 114545, 140410, 229090, 280820, 435271, 458180, 870542, 1741084, 2176355, 4352710, 8705420]

約数ペア:

[(1, 8705420), (2, 4352710), (4, 2176355), (5, 1741084), (10, 870542), (19, 458180), (20, 435271), (31, 280820), (38, 229090), (62, 140410), (76, 114545), (95, 91636), (124, 70205), (155, 56164), (190, 45818), (310, 28082), (380, 22909), (589, 14780), (620, 14041), (739, 11780), (1178, 7390), (1478, 5890), (2356, 3695), (2945, 2956)]