1988855.00000000

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{322559}}^1$

素因数の和:322581

約数の個数: 24

約数和(自身を含む): 189665280

約数和(自身を除く): 105799940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 322559, 645118, 1290236, 1612795, 3225590, 4193267, 6451180, 8386534, 16773068, 20966335, 41932670, 83865340]

約数ペア:

[(1, 83865340), (2, 41932670), (4, 20966335), (5, 16773068), (10, 8386534), (13, 6451180), (20, 4193267), (26, 3225590), (52, 1612795), (65, 1290236), (130, 645118), (260, 322559)]