20442760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{39313}}^1$

素因数の和:39337

約数の個数: 32

約数和(自身を含む): 49535640

約数和(自身を除く): 29092880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 39313, 78626, 157252, 196565, 314504, 393130, 511069, 786260, 1022138, 1572520, 2044276, 2555345, 4088552, 5110690, 10221380, 20442760]

約数ペア:

[(1, 20442760), (2, 10221380), (4, 5110690), (5, 4088552), (8, 2555345), (10, 2044276), (13, 1572520), (20, 1022138), (26, 786260), (40, 511069), (52, 393130), (65, 314504), (104, 196565), (130, 157252), (260, 78626), (520, 39313)]