20165678680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72020281}}^1$

素因数の和:72020299

約数の個数: 32

約数和(自身を含む): 51854603040

約数和(自身を除く): 31688924360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72020281, 144040562, 288081124, 360101405, 504141967, 576162248, 720202810, 1008283934, 1440405620, 2016567868, 2520709835, 2880811240, 4033135736, 5041419670, 10082839340, 20165678680]

約数ペア:

[(1, 20165678680), (2, 10082839340), (4, 5041419670), (5, 4033135736), (7, 2880811240), (8, 2520709835), (10, 2016567868), (14, 1440405620), (20, 1008283934), (28, 720202810), (35, 576162248), (40, 504141967), (56, 360101405), (70, 288081124), (140, 144040562), (280, 72020281)]