139644440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{268547}}^1$

素因数の和:268571

約数の個数: 32

約数和(自身を含む): 338370480

約数和(自身を除く): 198726040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 268547, 537094, 1074188, 1342735, 2148376, 2685470, 3491111, 5370940, 6982222, 10741880, 13964444, 17455555, 27928888, 34911110, 69822220, 139644440]

約数ペア:

[(1, 139644440), (2, 69822220), (4, 34911110), (5, 27928888), (8, 17455555), (10, 13964444), (13, 10741880), (20, 6982222), (26, 5370940), (40, 3491111), (52, 2685470), (65, 2148376), (104, 1342735), (130, 1074188), (260, 537094), (520, 268547)]