20635672

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{349}}^1\times {\mathrm{389}}^1$

素因数の和:763

約数の個数: 32

約数和(自身を含む): 40950000

約数和(自身を除く): 20314328

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 349, 389, 698, 778, 1396, 1556, 2792, 3112, 6631, 7391, 13262, 14782, 26524, 29564, 53048, 59128, 135761, 271522, 543044, 1086088, 2579459, 5158918, 10317836, 20635672]

約数ペア:

[(1, 20635672), (2, 10317836), (4, 5158918), (8, 2579459), (19, 1086088), (38, 543044), (76, 271522), (152, 135761), (349, 59128), (389, 53048), (698, 29564), (778, 26524), (1396, 14782), (1556, 13262), (2792, 7391), (3112, 6631)]