20199644375

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{6113}}^1$

素因数の和:6461

約数の個数: 40

約数和(自身を含む): 26816590944

約数和(自身を除く): 6616946569

約数列:

[1, 5, 17, 25, 85, 125, 311, 425, 625, 1555, 2125, 5287, 6113, 7775, 10625, 26435, 30565, 38875, 103921, 132175, 152825, 194375, 519605, 660875, 764125, 1901143, 2598025, 3304375, 3820625, 9505715, 12990125, 32319431, 47528575, 64950625, 161597155, 237642875, 807985775, 1188214375, 4039928875, 20199644375]

約数ペア:

[(1, 20199644375), (5, 4039928875), (17, 1188214375), (25, 807985775), (85, 237642875), (125, 161597155), (311, 64950625), (425, 47528575), (625, 32319431), (1555, 12990125), (2125, 9505715), (5287, 3820625), (6113, 3304375), (7775, 2598025), (10625, 1901143), (26435, 764125), (30565, 660875), (38875, 519605), (103921, 194375), (132175, 152825)]