28158520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54151}}^1$

素因数の和:54175

約数の個数: 32

約数和(自身を含む): 68231520

約数和(自身を除く): 40073000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 54151, 108302, 216604, 270755, 433208, 541510, 703963, 1083020, 1407926, 2166040, 2815852, 3519815, 5631704, 7039630, 14079260, 28158520]

約数ペア:

[(1, 28158520), (2, 14079260), (4, 7039630), (5, 5631704), (8, 3519815), (10, 2815852), (13, 2166040), (20, 1407926), (26, 1083020), (40, 703963), (52, 541510), (65, 433208), (104, 270755), (130, 216604), (260, 108302), (520, 54151)]