18865390

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{601}}^1$

素因数の和:724

約数の個数: 32

約数和(自身を含む): 35282016

約数和(自身を除く): 16416626

約数列:

[1, 2, 5, 10, 43, 73, 86, 146, 215, 365, 430, 601, 730, 1202, 3005, 3139, 6010, 6278, 15695, 25843, 31390, 43873, 51686, 87746, 129215, 219365, 258430, 438730, 1886539, 3773078, 9432695, 18865390]

約数ペア:

[(1, 18865390), (2, 9432695), (5, 3773078), (10, 1886539), (43, 438730), (73, 258430), (86, 219365), (146, 129215), (215, 87746), (365, 51686), (430, 43873), (601, 31390), (730, 25843), (1202, 15695), (3005, 6278), (3139, 6010)]