40038280

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{5081}}^1$

素因数の和:5289

約数の個数: 32

約数和(自身を含む): 90561240

約数和(自身を除く): 50522960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 5081, 7880, 10162, 20324, 25405, 40648, 50810, 101620, 203240, 1000957, 2001914, 4003828, 5004785, 8007656, 10009570, 20019140, 40038280]

約数ペア:

[(1, 40038280), (2, 20019140), (4, 10009570), (5, 8007656), (8, 5004785), (10, 4003828), (20, 2001914), (40, 1000957), (197, 203240), (394, 101620), (788, 50810), (985, 40648), (1576, 25405), (1970, 20324), (3940, 10162), (5081, 7880)]