231880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:70

約数の個数: 64

約数和(自身を含む): 622080

約数和(自身を除く): 390200

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 31, 34, 40, 44, 55, 62, 68, 85, 88, 110, 124, 136, 155, 170, 187, 220, 248, 310, 340, 341, 374, 440, 527, 620, 680, 682, 748, 935, 1054, 1240, 1364, 1496, 1705, 1870, 2108, 2635, 2728, 3410, 3740, 4216, 5270, 5797, 6820, 7480, 10540, 11594, 13640, 21080, 23188, 28985, 46376, 57970, 115940, 231880]

約数ペア:

[(1, 231880), (2, 115940), (4, 57970), (5, 46376), (8, 28985), (10, 23188), (11, 21080), (17, 13640), (20, 11594), (22, 10540), (31, 7480), (34, 6820), (40, 5797), (44, 5270), (55, 4216), (62, 3740), (68, 3410), (85, 2728), (88, 2635), (110, 2108), (124, 1870), (136, 1705), (155, 1496), (170, 1364), (187, 1240), (220, 1054), (248, 935), (310, 748), (340, 682), (341, 680), (374, 620), (440, 527)]