202203640

素因数分解:

$2^3\times 5^1\times {\mathrm{991}}^1\times {\mathrm{5101}}^1$

素因数の和:6103

約数の個数: 32

約数和(自身を含む): 455506560

約数和(自身を除く): 253302920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 991, 1982, 3964, 4955, 5101, 7928, 9910, 10202, 19820, 20404, 25505, 39640, 40808, 51010, 102020, 204040, 5055091, 10110182, 20220364, 25275455, 40440728, 50550910, 101101820, 202203640]

約数ペア:

[(1, 202203640), (2, 101101820), (4, 50550910), (5, 40440728), (8, 25275455), (10, 20220364), (20, 10110182), (40, 5055091), (991, 204040), (1982, 102020), (3964, 51010), (4955, 40808), (5101, 39640), (7928, 25505), (9910, 20404), (10202, 19820)]