81513570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{87649}}^1$

素因数の和:87690

約数の個数: 32

約数和(自身を含む): 201945600

約数和(自身を除く): 120432030

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 155, 186, 310, 465, 930, 87649, 175298, 262947, 438245, 525894, 876490, 1314735, 2629470, 2717119, 5434238, 8151357, 13585595, 16302714, 27171190, 40756785, 81513570]

約数ペア:

[(1, 81513570), (2, 40756785), (3, 27171190), (5, 16302714), (6, 13585595), (10, 8151357), (15, 5434238), (30, 2717119), (31, 2629470), (62, 1314735), (93, 876490), (155, 525894), (186, 438245), (310, 262947), (465, 175298), (930, 87649)]