31771120

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{971}}^1$

素因数の和:1393

約数の個数: 40

約数和(自身を含む): 74124720

約数和(自身を除く): 42353600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 971, 1636, 1942, 2045, 3272, 3884, 4090, 4855, 6544, 7768, 8180, 9710, 15536, 16360, 19420, 32720, 38840, 77680, 397139, 794278, 1588556, 1985695, 3177112, 3971390, 6354224, 7942780, 15885560, 31771120]

約数ペア:

[(1, 31771120), (2, 15885560), (4, 7942780), (5, 6354224), (8, 3971390), (10, 3177112), (16, 1985695), (20, 1588556), (40, 794278), (80, 397139), (409, 77680), (818, 38840), (971, 32720), (1636, 19420), (1942, 16360), (2045, 15536), (3272, 9710), (3884, 8180), (4090, 7768), (4855, 6544)]