20007999875

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{179243}}^1$

素因数の和:179324

約数の個数: 32

約数和(自身を含む): 26843581440

約数和(自身を除く): 6835581565

約数列:

[1, 5, 19, 25, 47, 95, 125, 235, 475, 893, 1175, 2375, 4465, 5875, 22325, 111625, 179243, 896215, 3405617, 4481075, 8424421, 17028085, 22405375, 42122105, 85140425, 160063999, 210610525, 425702125, 800319995, 1053052625, 4001599975, 20007999875]

約数ペア:

[(1, 20007999875), (5, 4001599975), (19, 1053052625), (25, 800319995), (47, 425702125), (95, 210610525), (125, 160063999), (235, 85140425), (475, 42122105), (893, 22405375), (1175, 17028085), (2375, 8424421), (4465, 4481075), (5875, 3405617), (22325, 896215), (111625, 179243)]