639139252

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{853}}^1\times {\mathrm{9859}}^1$

素因数の和:10735

約数の個数: 24

約数和(自身を含む): 1178861600

約数和(自身を除く): 539722348

約数列:

[1, 2, 4, 19, 38, 76, 853, 1706, 3412, 9859, 16207, 19718, 32414, 39436, 64828, 187321, 374642, 749284, 8409727, 16819454, 33638908, 159784813, 319569626, 639139252]

約数ペア:

[(1, 639139252), (2, 319569626), (4, 159784813), (19, 33638908), (38, 16819454), (76, 8409727), (853, 749284), (1706, 374642), (3412, 187321), (9859, 64828), (16207, 39436), (19718, 32414)]