20513636875

素因数分解:

$5^4\times {\mathrm{2243}}^1\times {\mathrm{14633}}^1$

素因数の和:16896

約数の個数: 20

約数和(自身を含む): 25647021576

約数和(自身を除く): 5133384701

約数列:

[1, 5, 25, 125, 625, 2243, 11215, 14633, 56075, 73165, 280375, 365825, 1401875, 1829125, 9145625, 32821819, 164109095, 820545475, 4102727375, 20513636875]

約数ペア:

[(1, 20513636875), (5, 4102727375), (25, 820545475), (125, 164109095), (625, 32821819), (2243, 9145625), (11215, 1829125), (14633, 1401875), (56075, 365825), (73165, 280375)]