87373540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{256981}}^1$

素因数の和:257007

約数の個数: 24

約数和(自身を含む): 194278392

約数和(自身を除く): 106904852

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 256981, 513962, 1027924, 1284905, 2569810, 4368677, 5139620, 8737354, 17474708, 21843385, 43686770, 87373540]

約数ペア:

[(1, 87373540), (2, 43686770), (4, 21843385), (5, 17474708), (10, 8737354), (17, 5139620), (20, 4368677), (34, 2569810), (68, 1284905), (85, 1027924), (170, 513962), (340, 256981)]