20450860

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16763}}^1$

素因数の和:16833

約数の個数: 24

約数和(自身を含む): 43653456

約数和(自身を除く): 23202596

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 16763, 33526, 67052, 83815, 167630, 335260, 1022543, 2045086, 4090172, 5112715, 10225430, 20450860]

約数ペア:

[(1, 20450860), (2, 10225430), (4, 5112715), (5, 4090172), (10, 2045086), (20, 1022543), (61, 335260), (122, 167630), (244, 83815), (305, 67052), (610, 33526), (1220, 16763)]