9902020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15971}}^1$

素因数の和:16011

約数の個数: 24

約数和(自身を含む): 21466368

約数和(自身を除く): 11564348

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 15971, 31942, 63884, 79855, 159710, 319420, 495101, 990202, 1980404, 2475505, 4951010, 9902020]

約数ペア:

[(1, 9902020), (2, 4951010), (4, 2475505), (5, 1980404), (10, 990202), (20, 495101), (31, 319420), (62, 159710), (124, 79855), (155, 63884), (310, 31942), (620, 15971)]