18408520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35401}}^1$

素因数の和:35425

約数の個数: 32

約数和(自身を含む): 44606520

約数和(自身を除く): 26198000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 35401, 70802, 141604, 177005, 283208, 354010, 460213, 708020, 920426, 1416040, 1840852, 2301065, 3681704, 4602130, 9204260, 18408520]

約数ペア:

[(1, 18408520), (2, 9204260), (4, 4602130), (5, 3681704), (8, 2301065), (10, 1840852), (13, 1416040), (20, 920426), (26, 708020), (40, 460213), (52, 354010), (65, 283208), (104, 177005), (130, 141604), (260, 70802), (520, 35401)]