31483660

素因数分解:

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

素因数の和:475

約数の個数: 72

約数和(自身を含む): 75816720

約数和(自身を除く): 44333060

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 289, 340, 419, 442, 578, 838, 884, 1105, 1156, 1445, 1676, 2095, 2210, 2890, 3757, 4190, 4420, 5447, 5780, 7123, 7514, 8380, 10894, 14246, 15028, 18785, 21788, 27235, 28492, 35615, 37570, 54470, 71230, 75140, 92599, 108940, 121091, 142460, 185198, 242182, 370396, 462995, 484364, 605455, 925990, 1210910, 1574183, 1851980, 2421820, 3148366, 6296732, 7870915, 15741830, 31483660]

約数ペア:

[(1, 31483660), (2, 15741830), (4, 7870915), (5, 6296732), (10, 3148366), (13, 2421820), (17, 1851980), (20, 1574183), (26, 1210910), (34, 925990), (52, 605455), (65, 484364), (68, 462995), (85, 370396), (130, 242182), (170, 185198), (221, 142460), (260, 121091), (289, 108940), (340, 92599), (419, 75140), (442, 71230), (578, 54470), (838, 37570), (884, 35615), (1105, 28492), (1156, 27235), (1445, 21788), (1676, 18785), (2095, 15028), (2210, 14246), (2890, 10894), (3757, 8380), (4190, 7514), (4420, 7123), (5447, 5780)]