28084400

素因数分解:

$2^4\times 5^2\times {\mathrm{61}}^1\times {\mathrm{1151}}^1$

素因数の和:1230

約数の個数: 60

約数和(自身を含む): 68638464

約数和(自身を除く): 40554064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 61, 80, 100, 122, 200, 244, 305, 400, 488, 610, 976, 1151, 1220, 1525, 2302, 2440, 3050, 4604, 4880, 5755, 6100, 9208, 11510, 12200, 18416, 23020, 24400, 28775, 46040, 57550, 70211, 92080, 115100, 140422, 230200, 280844, 351055, 460400, 561688, 702110, 1123376, 1404220, 1755275, 2808440, 3510550, 5616880, 7021100, 14042200, 28084400]

約数ペア:

[(1, 28084400), (2, 14042200), (4, 7021100), (5, 5616880), (8, 3510550), (10, 2808440), (16, 1755275), (20, 1404220), (25, 1123376), (40, 702110), (50, 561688), (61, 460400), (80, 351055), (100, 280844), (122, 230200), (200, 140422), (244, 115100), (305, 92080), (400, 70211), (488, 57550), (610, 46040), (976, 28775), (1151, 24400), (1220, 23020), (1525, 18416), (2302, 12200), (2440, 11510), (3050, 9208), (4604, 6100), (4880, 5755)]