31501520

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{3823}}^1$

素因数の和:3939

約数の個数: 40

約数和(自身を含む): 73971456

約数和(自身を除く): 42469936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 3823, 4120, 7646, 8240, 15292, 19115, 30584, 38230, 61168, 76460, 152920, 305840, 393769, 787538, 1575076, 1968845, 3150152, 3937690, 6300304, 7875380, 15750760, 31501520]

約数ペア:

[(1, 31501520), (2, 15750760), (4, 7875380), (5, 6300304), (8, 3937690), (10, 3150152), (16, 1968845), (20, 1575076), (40, 787538), (80, 393769), (103, 305840), (206, 152920), (412, 76460), (515, 61168), (824, 38230), (1030, 30584), (1648, 19115), (2060, 15292), (3823, 8240), (4120, 7646)]