31671440

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{2657}}^1$

素因数の和:2819

約数の個数: 40

約数和(自身を含む): 74158200

約数和(自身を除く): 42486760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 2384, 2657, 2980, 5314, 5960, 10628, 11920, 13285, 21256, 26570, 42512, 53140, 106280, 212560, 395893, 791786, 1583572, 1979465, 3167144, 3958930, 6334288, 7917860, 15835720, 31671440]

約数ペア:

[(1, 31671440), (2, 15835720), (4, 7917860), (5, 6334288), (8, 3958930), (10, 3167144), (16, 1979465), (20, 1583572), (40, 791786), (80, 395893), (149, 212560), (298, 106280), (596, 53140), (745, 42512), (1192, 26570), (1490, 21256), (2384, 13285), (2657, 11920), (2980, 10628), (5314, 5960)]