20181075

素因数分解:

$3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{5077}}^1$

素因数の和:5143

約数の個数: 24

約数和(自身を含む): 34002288

約数和(自身を除く): 13821213

約数列:

[1, 3, 5, 15, 25, 53, 75, 159, 265, 795, 1325, 3975, 5077, 15231, 25385, 76155, 126925, 269081, 380775, 807243, 1345405, 4036215, 6727025, 20181075]

約数ペア:

[(1, 20181075), (3, 6727025), (5, 4036215), (15, 1345405), (25, 807243), (53, 380775), (75, 269081), (159, 126925), (265, 76155), (795, 25385), (1325, 15231), (3975, 5077)]