28101640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{100363}}^1$

素因数の和:100381

約数の個数: 32

約数和(自身を含む): 72262080

約数和(自身を除く): 44160440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 100363, 200726, 401452, 501815, 702541, 802904, 1003630, 1405082, 2007260, 2810164, 3512705, 4014520, 5620328, 7025410, 14050820, 28101640]

約数ペア:

[(1, 28101640), (2, 14050820), (4, 7025410), (5, 5620328), (7, 4014520), (8, 3512705), (10, 2810164), (14, 2007260), (20, 1405082), (28, 1003630), (35, 802904), (40, 702541), (56, 501815), (70, 401452), (140, 200726), (280, 100363)]