263278340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{77893}}^1$

素因数の和:77928

約数の個数: 36

約数和(自身を含む): 598693284

約数和(自身を除く): 335414944

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 77893, 155786, 311572, 389465, 778930, 1012609, 1557860, 2025218, 4050436, 5063045, 10126090, 13163917, 20252180, 26327834, 52655668, 65819585, 131639170, 263278340]

約数ペア:

[(1, 263278340), (2, 131639170), (4, 65819585), (5, 52655668), (10, 26327834), (13, 20252180), (20, 13163917), (26, 10126090), (52, 5063045), (65, 4050436), (130, 2025218), (169, 1557860), (260, 1012609), (338, 778930), (676, 389465), (845, 311572), (1690, 155786), (3380, 77893)]