264740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:108

約数の個数: 48

約数和(自身を含む): 666624

約数和(自身を除く): 401884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 61, 62, 70, 122, 124, 140, 155, 217, 244, 305, 310, 427, 434, 610, 620, 854, 868, 1085, 1220, 1708, 1891, 2135, 2170, 3782, 4270, 4340, 7564, 8540, 9455, 13237, 18910, 26474, 37820, 52948, 66185, 132370, 264740]

約数ペア:

[(1, 264740), (2, 132370), (4, 66185), (5, 52948), (7, 37820), (10, 26474), (14, 18910), (20, 13237), (28, 9455), (31, 8540), (35, 7564), (61, 4340), (62, 4270), (70, 3782), (122, 2170), (124, 2135), (140, 1891), (155, 1708), (217, 1220), (244, 1085), (305, 868), (310, 854), (427, 620), (434, 610)]