2815420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 6451200

約数和(自身を除く): 3635780

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 239, 310, 380, 478, 589, 620, 956, 1178, 1195, 2356, 2390, 2945, 4541, 4780, 5890, 7409, 9082, 11780, 14818, 18164, 22705, 29636, 37045, 45410, 74090, 90820, 140771, 148180, 281542, 563084, 703855, 1407710, 2815420]

約数ペア:

[(1, 2815420), (2, 1407710), (4, 703855), (5, 563084), (10, 281542), (19, 148180), (20, 140771), (31, 90820), (38, 74090), (62, 45410), (76, 37045), (95, 29636), (124, 22705), (155, 18164), (190, 14818), (239, 11780), (310, 9082), (380, 7409), (478, 5890), (589, 4780), (620, 4541), (956, 2945), (1178, 2390), (1195, 2356)]