161749240

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139439}}^1$

素因数の和:139479

約数の個数: 32

約数和(自身を含む): 376488000

約数和(自身を除く): 214738760

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 139439, 278878, 557756, 697195, 1115512, 1394390, 2788780, 4043731, 5577560, 8087462, 16174924, 20218655, 32349848, 40437310, 80874620, 161749240]

約数ペア:

[(1, 161749240), (2, 80874620), (4, 40437310), (5, 32349848), (8, 20218655), (10, 16174924), (20, 8087462), (29, 5577560), (40, 4043731), (58, 2788780), (116, 1394390), (145, 1115512), (232, 697195), (290, 557756), (580, 278878), (1160, 139439)]