258222760

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{105829}}^1$

素因数の和:105901

約数の個数: 32

約数和(自身を含む): 590531400

約数和(自身を除く): 332308640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 105829, 211658, 423316, 529145, 846632, 1058290, 2116580, 4233160, 6455569, 12911138, 25822276, 32277845, 51644552, 64555690, 129111380, 258222760]

約数ペア:

[(1, 258222760), (2, 129111380), (4, 64555690), (5, 51644552), (8, 32277845), (10, 25822276), (20, 12911138), (40, 6455569), (61, 4233160), (122, 2116580), (244, 1058290), (305, 846632), (488, 529145), (610, 423316), (1220, 211658), (2440, 105829)]