489940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1$

素因数の和:168

約数の個数: 48

約数和(自身を含む): 1197504

約数和(自身を除く): 707564

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 131, 170, 187, 220, 262, 340, 374, 524, 655, 748, 935, 1310, 1441, 1870, 2227, 2620, 2882, 3740, 4454, 5764, 7205, 8908, 11135, 14410, 22270, 24497, 28820, 44540, 48994, 97988, 122485, 244970, 489940]

約数ペア:

[(1, 489940), (2, 244970), (4, 122485), (5, 97988), (10, 48994), (11, 44540), (17, 28820), (20, 24497), (22, 22270), (34, 14410), (44, 11135), (55, 8908), (68, 7205), (85, 5764), (110, 4454), (131, 3740), (170, 2882), (187, 2620), (220, 2227), (262, 1870), (340, 1441), (374, 1310), (524, 935), (655, 748)]