11720980

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{8747}}^1$

素因数の和:8823

約数の個数: 24

約数和(自身を含む): 24984288

約数和(自身を除く): 13263308

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 8747, 17494, 34988, 43735, 87470, 174940, 586049, 1172098, 2344196, 2930245, 5860490, 11720980]

約数ペア:

[(1, 11720980), (2, 5860490), (4, 2930245), (5, 2344196), (10, 1172098), (20, 586049), (67, 174940), (134, 87470), (268, 43735), (335, 34988), (670, 17494), (1340, 8747)]