28099960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{100357}}^1$

素因数の和:100375

約数の個数: 32

約数和(自身を含む): 72257760

約数和(自身を除く): 44157800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 100357, 200714, 401428, 501785, 702499, 802856, 1003570, 1404998, 2007140, 2809996, 3512495, 4014280, 5619992, 7024990, 14049980, 28099960]

約数ペア:

[(1, 28099960), (2, 14049980), (4, 7024990), (5, 5619992), (7, 4014280), (8, 3512495), (10, 2809996), (14, 2007140), (20, 1404998), (28, 1003570), (35, 802856), (40, 702499), (56, 501785), (70, 401428), (140, 200714), (280, 100357)]