17983940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263}}^2$

素因数の和:548

約数の個数: 36

約数和(自身を含む): 40826604

約数和(自身を除く): 22842664

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 263, 526, 1052, 1315, 2630, 3419, 5260, 6838, 13676, 17095, 34190, 68380, 69169, 138338, 276676, 345845, 691690, 899197, 1383380, 1798394, 3596788, 4495985, 8991970, 17983940]

約数ペア:

[(1, 17983940), (2, 8991970), (4, 4495985), (5, 3596788), (10, 1798394), (13, 1383380), (20, 899197), (26, 691690), (52, 345845), (65, 276676), (130, 138338), (260, 69169), (263, 68380), (526, 34190), (1052, 17095), (1315, 13676), (2630, 6838), (3419, 5260)]