211960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{757}}^1$

素因数の和:775

約数の個数: 32

約数和(自身を含む): 545760

約数和(自身を除く): 333800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 757, 1514, 3028, 3785, 5299, 6056, 7570, 10598, 15140, 21196, 26495, 30280, 42392, 52990, 105980, 211960]

約数ペア:

[(1, 211960), (2, 105980), (4, 52990), (5, 42392), (7, 30280), (8, 26495), (10, 21196), (14, 15140), (20, 10598), (28, 7570), (35, 6056), (40, 5299), (56, 3785), (70, 3028), (140, 1514), (280, 757)]