389639125

素因数分解:

$5^3\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{1021}}^1$

素因数の和:1150

約数の個数: 32

約数和(自身を含む): 505080576

約数和(自身を除く): 115441451

約数列:

[1, 5, 25, 43, 71, 125, 215, 355, 1021, 1075, 1775, 3053, 5105, 5375, 8875, 15265, 25525, 43903, 72491, 76325, 127625, 219515, 362455, 381625, 1097575, 1812275, 3117113, 5487875, 9061375, 15585565, 77927825, 389639125]

約数ペア:

[(1, 389639125), (5, 77927825), (25, 15585565), (43, 9061375), (71, 5487875), (125, 3117113), (215, 1812275), (355, 1097575), (1021, 381625), (1075, 362455), (1775, 219515), (3053, 127625), (5105, 76325), (5375, 72491), (8875, 43903), (15265, 25525)]