28223175

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 49203200

約数和(自身を除く): 20980025

約数列:

[1, 3, 5, 15, 25, 31, 61, 75, 93, 155, 183, 199, 305, 465, 597, 775, 915, 995, 1525, 1891, 2325, 2985, 4575, 4975, 5673, 6169, 9455, 12139, 14925, 18507, 28365, 30845, 36417, 47275, 60695, 92535, 141825, 154225, 182085, 303475, 376309, 462675, 910425, 1128927, 1881545, 5644635, 9407725, 28223175]

約数ペア:

[(1, 28223175), (3, 9407725), (5, 5644635), (15, 1881545), (25, 1128927), (31, 910425), (61, 462675), (75, 376309), (93, 303475), (155, 182085), (183, 154225), (199, 141825), (305, 92535), (465, 60695), (597, 47275), (775, 36417), (915, 30845), (995, 28365), (1525, 18507), (1891, 14925), (2325, 12139), (2985, 9455), (4575, 6169), (4975, 5673)]