86908420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{255613}}^1$

素因数の和:255639

約数の個数: 24

約数和(自身を含む): 193244184

約数和(自身を除く): 106335764

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 255613, 511226, 1022452, 1278065, 2556130, 4345421, 5112260, 8690842, 17381684, 21727105, 43454210, 86908420]

約数ペア:

[(1, 86908420), (2, 43454210), (4, 21727105), (5, 17381684), (10, 8690842), (17, 5112260), (20, 4345421), (34, 2556130), (68, 1278065), (85, 1022452), (170, 511226), (340, 255613)]