79979600

素因数分解:

$2^4\times 5^2\times {\mathrm{79}}^1\times {\mathrm{2531}}^1$

素因数の和:2628

約数の個数: 60

約数和(自身を含む): 194660160

約数和(自身を除く): 114680560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 79, 80, 100, 158, 200, 316, 395, 400, 632, 790, 1264, 1580, 1975, 2531, 3160, 3950, 5062, 6320, 7900, 10124, 12655, 15800, 20248, 25310, 31600, 40496, 50620, 63275, 101240, 126550, 199949, 202480, 253100, 399898, 506200, 799796, 999745, 1012400, 1599592, 1999490, 3199184, 3998980, 4998725, 7997960, 9997450, 15995920, 19994900, 39989800, 79979600]

約数ペア:

[(1, 79979600), (2, 39989800), (4, 19994900), (5, 15995920), (8, 9997450), (10, 7997960), (16, 4998725), (20, 3998980), (25, 3199184), (40, 1999490), (50, 1599592), (79, 1012400), (80, 999745), (100, 799796), (158, 506200), (200, 399898), (316, 253100), (395, 202480), (400, 199949), (632, 126550), (790, 101240), (1264, 63275), (1580, 50620), (1975, 40496), (2531, 31600), (3160, 25310), (3950, 20248), (5062, 15800), (6320, 12655), (7900, 10124)]