164062520

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{39821}}^1$

素因数の和:39935

約数の個数: 32

約数和(自身を含む): 372733920

約数和(自身を除く): 208671400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 39821, 79642, 159284, 199105, 318568, 398210, 796420, 1592840, 4101563, 8203126, 16406252, 20507815, 32812504, 41015630, 82031260, 164062520]

約数ペア:

[(1, 164062520), (2, 82031260), (4, 41015630), (5, 32812504), (8, 20507815), (10, 16406252), (20, 8203126), (40, 4101563), (103, 1592840), (206, 796420), (412, 398210), (515, 318568), (824, 199105), (1030, 159284), (2060, 79642), (4120, 39821)]