620331880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{2215471}}^1$

素因数の和:2215489

約数の個数: 32

約数和(自身を含む): 1595139840

約数和(自身を除く): 974807960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 2215471, 4430942, 8861884, 11077355, 15508297, 17723768, 22154710, 31016594, 44309420, 62033188, 77541485, 88618840, 124066376, 155082970, 310165940, 620331880]

約数ペア:

[(1, 620331880), (2, 310165940), (4, 155082970), (5, 124066376), (7, 88618840), (8, 77541485), (10, 62033188), (14, 44309420), (20, 31016594), (28, 22154710), (35, 17723768), (40, 15508297), (56, 11077355), (70, 8861884), (140, 4430942), (280, 2215471)]