16128225

素因数分解:

$3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1667}}^1$

素因数の和:1726

約数の個数: 36

約数和(自身を含む): 29576976

約数和(自身を除く): 13448751

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 129, 215, 225, 387, 645, 1075, 1667, 1935, 3225, 5001, 8335, 9675, 15003, 25005, 41675, 71681, 75015, 125025, 215043, 358405, 375075, 645129, 1075215, 1792025, 3225645, 5376075, 16128225]

約数ペア:

[(1, 16128225), (3, 5376075), (5, 3225645), (9, 1792025), (15, 1075215), (25, 645129), (43, 375075), (45, 358405), (75, 215043), (129, 125025), (215, 75015), (225, 71681), (387, 41675), (645, 25005), (1075, 15003), (1667, 9675), (1935, 8335), (3225, 5001)]