28393520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^2$

素因数の和:258

約数の個数: 60

約数和(自身を含む): 68787264

約数和(自身を除く): 40393744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 107, 124, 155, 214, 248, 310, 428, 496, 535, 620, 856, 1070, 1240, 1712, 2140, 2480, 3317, 4280, 6634, 8560, 11449, 13268, 16585, 22898, 26536, 33170, 45796, 53072, 57245, 66340, 91592, 114490, 132680, 183184, 228980, 265360, 354919, 457960, 709838, 915920, 1419676, 1774595, 2839352, 3549190, 5678704, 7098380, 14196760, 28393520]

約数ペア:

[(1, 28393520), (2, 14196760), (4, 7098380), (5, 5678704), (8, 3549190), (10, 2839352), (16, 1774595), (20, 1419676), (31, 915920), (40, 709838), (62, 457960), (80, 354919), (107, 265360), (124, 228980), (155, 183184), (214, 132680), (248, 114490), (310, 91592), (428, 66340), (496, 57245), (535, 53072), (620, 45796), (856, 33170), (1070, 26536), (1240, 22898), (1712, 16585), (2140, 13268), (2480, 11449), (3317, 8560), (4280, 6634)]