158541640

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{15791}}^1$

素因数の和:16053

約数の個数: 32

約数和(自身を含む): 358162560

約数和(自身を除く): 199620920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 10040, 15791, 31582, 63164, 78955, 126328, 157910, 315820, 631640, 3963541, 7927082, 15854164, 19817705, 31708328, 39635410, 79270820, 158541640]

約数ペア:

[(1, 158541640), (2, 79270820), (4, 39635410), (5, 31708328), (8, 19817705), (10, 15854164), (20, 7927082), (40, 3963541), (251, 631640), (502, 315820), (1004, 157910), (1255, 126328), (2008, 78955), (2510, 63164), (5020, 31582), (10040, 15791)]