81917816

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{3617}}^1$

素因数の和:3791

約数の個数: 32

約数和(自身を含む): 162810000

約数和(自身を除く): 80892184

約数列:

[1, 2, 4, 8, 19, 38, 76, 149, 152, 298, 596, 1192, 2831, 3617, 5662, 7234, 11324, 14468, 22648, 28936, 68723, 137446, 274892, 538933, 549784, 1077866, 2155732, 4311464, 10239727, 20479454, 40958908, 81917816]

約数ペア:

[(1, 81917816), (2, 40958908), (4, 20479454), (8, 10239727), (19, 4311464), (38, 2155732), (76, 1077866), (149, 549784), (152, 538933), (298, 274892), (596, 137446), (1192, 68723), (2831, 28936), (3617, 22648), (5662, 14468), (7234, 11324)]