81691634

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:458

約数の個数: 32

約数和(自身を含む): 131328000

約数和(自身を除く): 49636366

約数列:

[1, 2, 31, 37, 62, 74, 149, 239, 298, 478, 1147, 2294, 4619, 5513, 7409, 8843, 9238, 11026, 14818, 17686, 35611, 71222, 170903, 274133, 341806, 548266, 1103941, 1317607, 2207882, 2635214, 40845817, 81691634]

約数ペア:

[(1, 81691634), (2, 40845817), (31, 2635214), (37, 2207882), (62, 1317607), (74, 1103941), (149, 548266), (239, 341806), (298, 274133), (478, 170903), (1147, 71222), (2294, 35611), (4619, 17686), (5513, 14818), (7409, 11026), (8843, 9238)]