18323480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2111}}^1$

素因数の和:2160

約数の個数: 64

約数和(自身を含む): 48660480

約数和(自身を除く): 30337000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2111, 2170, 4222, 4340, 8444, 8680, 10555, 14777, 16888, 21110, 29554, 42220, 59108, 65441, 73885, 84440, 118216, 130882, 147770, 261764, 295540, 327205, 458087, 523528, 591080, 654410, 916174, 1308820, 1832348, 2290435, 2617640, 3664696, 4580870, 9161740, 18323480]

約数ペア:

[(1, 18323480), (2, 9161740), (4, 4580870), (5, 3664696), (7, 2617640), (8, 2290435), (10, 1832348), (14, 1308820), (20, 916174), (28, 654410), (31, 591080), (35, 523528), (40, 458087), (56, 327205), (62, 295540), (70, 261764), (124, 147770), (140, 130882), (155, 118216), (217, 84440), (248, 73885), (280, 65441), (310, 59108), (434, 42220), (620, 29554), (868, 21110), (1085, 16888), (1240, 14777), (1736, 10555), (2111, 8680), (2170, 8444), (4222, 4340)]