18813116560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{82139}}^1$

素因数の和:82568

約数の個数: 80

約数和(自身を含む): 50111971200

約数和(自身を除く): 31298854640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 409, 560, 818, 1636, 2045, 2863, 3272, 4090, 5726, 6544, 8180, 11452, 14315, 16360, 22904, 28630, 32720, 45808, 57260, 82139, 114520, 164278, 229040, 328556, 410695, 574973, 657112, 821390, 1149946, 1314224, 1642780, 2299892, 2874865, 3285560, 4599784, 5749730, 6571120, 9199568, 11499460, 22998920, 33594851, 45997840, 67189702, 134379404, 167974255, 235163957, 268758808, 335948510, 470327914, 537517616, 671897020, 940655828, 1175819785, 1343794040, 1881311656, 2351639570, 2687588080, 3762623312, 4703279140, 9406558280, 18813116560]

約数ペア:

[(1, 18813116560), (2, 9406558280), (4, 4703279140), (5, 3762623312), (7, 2687588080), (8, 2351639570), (10, 1881311656), (14, 1343794040), (16, 1175819785), (20, 940655828), (28, 671897020), (35, 537517616), (40, 470327914), (56, 335948510), (70, 268758808), (80, 235163957), (112, 167974255), (140, 134379404), (280, 67189702), (409, 45997840), (560, 33594851), (818, 22998920), (1636, 11499460), (2045, 9199568), (2863, 6571120), (3272, 5749730), (4090, 4599784), (5726, 3285560), (6544, 2874865), (8180, 2299892), (11452, 1642780), (14315, 1314224), (16360, 1149946), (22904, 821390), (28630, 657112), (32720, 574973), (45808, 410695), (57260, 328556), (82139, 229040), (114520, 164278)]