20398696

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:421

約数の個数: 32

約数和(自身を含む): 39105000

約数和(自身を除く): 18706304

約数列:

[1, 2, 4, 8, 109, 149, 157, 218, 298, 314, 436, 596, 628, 872, 1192, 1256, 16241, 17113, 23393, 32482, 34226, 46786, 64964, 68452, 93572, 129928, 136904, 187144, 2549837, 5099674, 10199348, 20398696]

約数ペア:

[(1, 20398696), (2, 10199348), (4, 5099674), (8, 2549837), (109, 187144), (149, 136904), (157, 129928), (218, 93572), (298, 68452), (314, 64964), (436, 46786), (596, 34226), (628, 32482), (872, 23393), (1192, 17113), (1256, 16241)]