20402469375

素因数分解:

$3^1\times 5^4\times {\mathrm{1277}}^1\times {\mathrm{8521}}^1$

素因数の和:9821

約数の個数: 40

約数和(自身を含む): 34023846384

約数和(自身を除く): 13621377009

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 1277, 1875, 3831, 6385, 8521, 19155, 25563, 31925, 42605, 95775, 127815, 159625, 213025, 478875, 639075, 798125, 1065125, 2394375, 3195375, 5325625, 10881317, 15976875, 32643951, 54406585, 163219755, 272032925, 816098775, 1360164625, 4080493875, 6800823125, 20402469375]

約数ペア:

[(1, 20402469375), (3, 6800823125), (5, 4080493875), (15, 1360164625), (25, 816098775), (75, 272032925), (125, 163219755), (375, 54406585), (625, 32643951), (1277, 15976875), (1875, 10881317), (3831, 5325625), (6385, 3195375), (8521, 2394375), (19155, 1065125), (25563, 798125), (31925, 639075), (42605, 478875), (95775, 213025), (127815, 159625)]