19786160

素因数分解:

$2^4\times 5^1\times {\mathrm{167}}^1\times {\mathrm{1481}}^1$

素因数の和:1661

約数の個数: 40

約数和(自身を含む): 46309536

約数和(自身を除く): 26523376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 167, 334, 668, 835, 1336, 1481, 1670, 2672, 2962, 3340, 5924, 6680, 7405, 11848, 13360, 14810, 23696, 29620, 59240, 118480, 247327, 494654, 989308, 1236635, 1978616, 2473270, 3957232, 4946540, 9893080, 19786160]

約数ペア:

[(1, 19786160), (2, 9893080), (4, 4946540), (5, 3957232), (8, 2473270), (10, 1978616), (16, 1236635), (20, 989308), (40, 494654), (80, 247327), (167, 118480), (334, 59240), (668, 29620), (835, 23696), (1336, 14810), (1481, 13360), (1670, 11848), (2672, 7405), (2962, 6680), (3340, 5924)]