7407920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1$

素因数の和:462

約数の個数: 80

約数和(自身を含む): 19686240

約数和(自身を除く): 12278320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 419, 442, 520, 680, 838, 884, 1040, 1105, 1360, 1676, 1768, 2095, 2210, 3352, 3536, 4190, 4420, 5447, 6704, 7123, 8380, 8840, 10894, 14246, 16760, 17680, 21788, 27235, 28492, 33520, 35615, 43576, 54470, 56984, 71230, 87152, 92599, 108940, 113968, 142460, 185198, 217880, 284920, 370396, 435760, 462995, 569840, 740792, 925990, 1481584, 1851980, 3703960, 7407920]

約数ペア:

[(1, 7407920), (2, 3703960), (4, 1851980), (5, 1481584), (8, 925990), (10, 740792), (13, 569840), (16, 462995), (17, 435760), (20, 370396), (26, 284920), (34, 217880), (40, 185198), (52, 142460), (65, 113968), (68, 108940), (80, 92599), (85, 87152), (104, 71230), (130, 56984), (136, 54470), (170, 43576), (208, 35615), (221, 33520), (260, 28492), (272, 27235), (340, 21788), (419, 17680), (442, 16760), (520, 14246), (680, 10894), (838, 8840), (884, 8380), (1040, 7123), (1105, 6704), (1360, 5447), (1676, 4420), (1768, 4190), (2095, 3536), (2210, 3352)]