1338862690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{569}}^1\times {\mathrm{21391}}^1$

素因数の和:21978

約数の個数: 32

約数和(自身を含む): 2633783040

約数和(自身を除く): 1294920350

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 569, 1138, 2845, 5690, 6259, 12518, 21391, 31295, 42782, 62590, 106955, 213910, 235301, 470602, 1176505, 2353010, 12171479, 24342958, 60857395, 121714790, 133886269, 267772538, 669431345, 1338862690]

約数ペア:

[(1, 1338862690), (2, 669431345), (5, 267772538), (10, 133886269), (11, 121714790), (22, 60857395), (55, 24342958), (110, 12171479), (569, 2353010), (1138, 1176505), (2845, 470602), (5690, 235301), (6259, 213910), (12518, 106955), (21391, 62590), (31295, 42782)]