15970040

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2543}}^1$

素因数の和:2711

約数の個数: 32

約数和(自身を含む): 36175680

約数和(自身を除く): 20205640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 2543, 3140, 5086, 6280, 10172, 12715, 20344, 25430, 50860, 101720, 399251, 798502, 1597004, 1996255, 3194008, 3992510, 7985020, 15970040]

約数ペア:

[(1, 15970040), (2, 7985020), (4, 3992510), (5, 3194008), (8, 1996255), (10, 1597004), (20, 798502), (40, 399251), (157, 101720), (314, 50860), (628, 25430), (785, 20344), (1256, 12715), (1570, 10172), (2543, 6280), (3140, 5086)]