139681480

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{44203}}^1$

素因数の和:44293

約数の個数: 32

約数和(自身を含む): 318268800

約数和(自身を除く): 178587320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 44203, 88406, 176812, 221015, 353624, 442030, 884060, 1768120, 3492037, 6984074, 13968148, 17460185, 27936296, 34920370, 69840740, 139681480]

約数ペア:

[(1, 139681480), (2, 69840740), (4, 34920370), (5, 27936296), (8, 17460185), (10, 13968148), (20, 6984074), (40, 3492037), (79, 1768120), (158, 884060), (316, 442030), (395, 353624), (632, 221015), (790, 176812), (1580, 88406), (3160, 44203)]