20787430

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{122279}}^1$

素因数の和:122303

約数の個数: 16

約数和(自身を含む): 39618720

約数和(自身を除く): 18831290

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 122279, 244558, 611395, 1222790, 2078743, 4157486, 10393715, 20787430]

約数ペア:

[(1, 20787430), (2, 10393715), (5, 4157486), (10, 2078743), (17, 1222790), (34, 611395), (85, 244558), (170, 122279)]