28201010

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{90971}}^1$

素因数の和:91009

約数の個数: 16

約数和(自身を含む): 52399872

約数和(自身を除く): 24198862

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 90971, 181942, 454855, 909710, 2820101, 5640202, 14100505, 28201010]

約数ペア:

[(1, 28201010), (2, 14100505), (5, 5640202), (10, 2820101), (31, 909710), (62, 454855), (155, 181942), (310, 90971)]