128418525

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{19681}}^1$

素因数の和:19726

約数の個数: 36

約数和(自身を含む): 237955380

約数和(自身を除く): 109536855

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 145, 225, 261, 435, 725, 1305, 2175, 6525, 19681, 59043, 98405, 177129, 295215, 492025, 570749, 885645, 1476075, 1712247, 2853745, 4428225, 5136741, 8561235, 14268725, 25683705, 42806175, 128418525]

約数ペア:

[(1, 128418525), (3, 42806175), (5, 25683705), (9, 14268725), (15, 8561235), (25, 5136741), (29, 4428225), (45, 2853745), (75, 1712247), (87, 1476075), (145, 885645), (225, 570749), (261, 492025), (435, 295215), (725, 177129), (1305, 98405), (2175, 59043), (6525, 19681)]