78539740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{967}}^1$

素因数の和:1138

約数の個数: 48

約数和(自身を含む): 171730944

約数和(自身を除く): 93191204

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 131, 155, 262, 310, 524, 620, 655, 967, 1310, 1934, 2620, 3868, 4061, 4835, 8122, 9670, 16244, 19340, 20305, 29977, 40610, 59954, 81220, 119908, 126677, 149885, 253354, 299770, 506708, 599540, 633385, 1266770, 2533540, 3926987, 7853974, 15707948, 19634935, 39269870, 78539740]

約数ペア:

[(1, 78539740), (2, 39269870), (4, 19634935), (5, 15707948), (10, 7853974), (20, 3926987), (31, 2533540), (62, 1266770), (124, 633385), (131, 599540), (155, 506708), (262, 299770), (310, 253354), (524, 149885), (620, 126677), (655, 119908), (967, 81220), (1310, 59954), (1934, 40610), (2620, 29977), (3868, 20305), (4061, 19340), (4835, 16244), (8122, 9670)]