639253836

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{455309}}^1$

素因数の和:455335

約数の個数: 48

約数和(自身を含む): 1784815200

約数和(自身を除く): 1145561364

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 234, 351, 468, 702, 1404, 455309, 910618, 1365927, 1821236, 2731854, 4097781, 5463708, 5919017, 8195562, 11838034, 12293343, 16391124, 17757051, 23676068, 24586686, 35514102, 49173372, 53271153, 71028204, 106542306, 159813459, 213084612, 319626918, 639253836]

約数ペア:

[(1, 639253836), (2, 319626918), (3, 213084612), (4, 159813459), (6, 106542306), (9, 71028204), (12, 53271153), (13, 49173372), (18, 35514102), (26, 24586686), (27, 23676068), (36, 17757051), (39, 16391124), (52, 12293343), (54, 11838034), (78, 8195562), (108, 5919017), (117, 5463708), (156, 4097781), (234, 2731854), (351, 1821236), (468, 1365927), (702, 910618), (1404, 455309)]