31555280

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3011}}^1$

素因数の和:3155

約数の個数: 40

約数和(自身を含む): 73950624

約数和(自身を除く): 42395344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 3011, 5240, 6022, 10480, 12044, 15055, 24088, 30110, 48176, 60220, 120440, 240880, 394441, 788882, 1577764, 1972205, 3155528, 3944410, 6311056, 7888820, 15777640, 31555280]

約数ペア:

[(1, 31555280), (2, 15777640), (4, 7888820), (5, 6311056), (8, 3944410), (10, 3155528), (16, 1972205), (20, 1577764), (40, 788882), (80, 394441), (131, 240880), (262, 120440), (524, 60220), (655, 48176), (1048, 30110), (1310, 24088), (2096, 15055), (2620, 12044), (3011, 10480), (5240, 6022)]