640141992

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{1270123}}^1$

素因数の和:1270142

約数の個数: 48

約数和(自身を含む): 1981393440

約数和(自身を除く): 1341251448

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 1270123, 2540246, 3810369, 5080492, 7620738, 8890861, 10160984, 11431107, 15241476, 17781722, 22862214, 26672583, 30482952, 35563444, 45724428, 53345166, 71126888, 80017749, 91448856, 106690332, 160035498, 213380664, 320070996, 640141992]

約数ペア:

[(1, 640141992), (2, 320070996), (3, 213380664), (4, 160035498), (6, 106690332), (7, 91448856), (8, 80017749), (9, 71126888), (12, 53345166), (14, 45724428), (18, 35563444), (21, 30482952), (24, 26672583), (28, 22862214), (36, 17781722), (42, 15241476), (56, 11431107), (63, 10160984), (72, 8890861), (84, 7620738), (126, 5080492), (168, 3810369), (252, 2540246), (504, 1270123)]