18137660

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 39517632

約数和(自身を除く): 21379972

約数列:

[1, 2, 4, 5, 10, 20, 53, 71, 106, 142, 212, 241, 265, 284, 355, 482, 530, 710, 964, 1060, 1205, 1420, 2410, 3763, 4820, 7526, 12773, 15052, 17111, 18815, 25546, 34222, 37630, 51092, 63865, 68444, 75260, 85555, 127730, 171110, 255460, 342220, 906883, 1813766, 3627532, 4534415, 9068830, 18137660]

約数ペア:

[(1, 18137660), (2, 9068830), (4, 4534415), (5, 3627532), (10, 1813766), (20, 906883), (53, 342220), (71, 255460), (106, 171110), (142, 127730), (212, 85555), (241, 75260), (265, 68444), (284, 63865), (355, 51092), (482, 37630), (530, 34222), (710, 25546), (964, 18815), (1060, 17111), (1205, 15052), (1420, 12773), (2410, 7526), (3763, 4820)]