211028140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{620671}}^1$

素因数の和:620697

約数の個数: 24

約数和(自身を含む): 469228032

約数和(自身を除く): 258199892

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 620671, 1241342, 2482684, 3103355, 6206710, 10551407, 12413420, 21102814, 42205628, 52757035, 105514070, 211028140]

約数ペア:

[(1, 211028140), (2, 105514070), (4, 52757035), (5, 42205628), (10, 21102814), (17, 12413420), (20, 10551407), (34, 6206710), (68, 3103355), (85, 2482684), (170, 1241342), (340, 620671)]