27789040

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4397}}^1$

素因数の和:4489

約数の個数: 40

約数和(自身を含む): 65442240

約数和(自身を除く): 37653200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 4397, 6320, 8794, 17588, 21985, 35176, 43970, 70352, 87940, 175880, 347363, 351760, 694726, 1389452, 1736815, 2778904, 3473630, 5557808, 6947260, 13894520, 27789040]

約数ペア:

[(1, 27789040), (2, 13894520), (4, 6947260), (5, 5557808), (8, 3473630), (10, 2778904), (16, 1736815), (20, 1389452), (40, 694726), (79, 351760), (80, 347363), (158, 175880), (316, 87940), (395, 70352), (632, 43970), (790, 35176), (1264, 21985), (1580, 17588), (3160, 8794), (4397, 6320)]