20328075

素因数分解:

$3^2\times 5^2\times {\mathrm{167}}^1\times {\mathrm{541}}^1$

素因数の和:724

約数の個数: 36

約数和(自身を含む): 36695568

約数和(自身を除く): 16367493

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 167, 225, 501, 541, 835, 1503, 1623, 2505, 2705, 4175, 4869, 7515, 8115, 12525, 13525, 24345, 37575, 40575, 90347, 121725, 271041, 451735, 813123, 1355205, 2258675, 4065615, 6776025, 20328075]

約数ペア:

[(1, 20328075), (3, 6776025), (5, 4065615), (9, 2258675), (15, 1355205), (25, 813123), (45, 451735), (75, 271041), (167, 121725), (225, 90347), (501, 40575), (541, 37575), (835, 24345), (1503, 13525), (1623, 12525), (2505, 8115), (2705, 7515), (4175, 4869)]