268707920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{258373}}^1$

素因数の和:258399

約数の個数: 40

約数和(自身を含む): 672805896

約数和(自身を除く): 404097976

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 258373, 516746, 1033492, 1291865, 2066984, 2583730, 3358849, 4133968, 5167460, 6717698, 10334920, 13435396, 16794245, 20669840, 26870792, 33588490, 53741584, 67176980, 134353960, 268707920]

約数ペア:

[(1, 268707920), (2, 134353960), (4, 67176980), (5, 53741584), (8, 33588490), (10, 26870792), (13, 20669840), (16, 16794245), (20, 13435396), (26, 10334920), (40, 6717698), (52, 5167460), (65, 4133968), (80, 3358849), (104, 2583730), (130, 2066984), (208, 1291865), (260, 1033492), (520, 516746), (1040, 258373)]