78709150

素因数分解:

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

素因数の和:478

約数の個数: 72

約数和(自身を含む): 167879880

約数和(自身を除く): 89170730

約数列:

[1, 2, 5, 10, 13, 17, 25, 26, 34, 50, 65, 85, 130, 170, 221, 289, 325, 419, 425, 442, 578, 650, 838, 850, 1105, 1445, 2095, 2210, 2890, 3757, 4190, 5447, 5525, 7123, 7225, 7514, 10475, 10894, 11050, 14246, 14450, 18785, 20950, 27235, 35615, 37570, 54470, 71230, 92599, 93925, 121091, 136175, 178075, 185198, 187850, 242182, 272350, 356150, 462995, 605455, 925990, 1210910, 1574183, 2314975, 3027275, 3148366, 4629950, 6054550, 7870915, 15741830, 39354575, 78709150]

約数ペア:

[(1, 78709150), (2, 39354575), (5, 15741830), (10, 7870915), (13, 6054550), (17, 4629950), (25, 3148366), (26, 3027275), (34, 2314975), (50, 1574183), (65, 1210910), (85, 925990), (130, 605455), (170, 462995), (221, 356150), (289, 272350), (325, 242182), (419, 187850), (425, 185198), (442, 178075), (578, 136175), (650, 121091), (838, 93925), (850, 92599), (1105, 71230), (1445, 54470), (2095, 37570), (2210, 35615), (2890, 27235), (3757, 20950), (4190, 18785), (5447, 14450), (5525, 14246), (7123, 11050), (7225, 10894), (7514, 10475)]