28102780

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{307}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 62092800

約数和(自身を除く): 33990020

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 199, 230, 307, 398, 460, 614, 796, 995, 1228, 1535, 1990, 3070, 3980, 4577, 6140, 7061, 9154, 14122, 18308, 22885, 28244, 35305, 45770, 61093, 70610, 91540, 122186, 141220, 244372, 305465, 610930, 1221860, 1405139, 2810278, 5620556, 7025695, 14051390, 28102780]

約数ペア:

[(1, 28102780), (2, 14051390), (4, 7025695), (5, 5620556), (10, 2810278), (20, 1405139), (23, 1221860), (46, 610930), (92, 305465), (115, 244372), (199, 141220), (230, 122186), (307, 91540), (398, 70610), (460, 61093), (614, 45770), (796, 35305), (995, 28244), (1228, 22885), (1535, 18308), (1990, 14122), (3070, 9154), (3980, 7061), (4577, 6140)]