815925

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:90

約数の個数: 48

約数和(自身を含む): 1571328

約数和(自身を除く): 755403

約数列:

[1, 3, 5, 11, 15, 23, 25, 33, 43, 55, 69, 75, 115, 129, 165, 215, 253, 275, 345, 473, 575, 645, 759, 825, 989, 1075, 1265, 1419, 1725, 2365, 2967, 3225, 3795, 4945, 6325, 7095, 10879, 11825, 14835, 18975, 24725, 32637, 35475, 54395, 74175, 163185, 271975, 815925]

約数ペア:

[(1, 815925), (3, 271975), (5, 163185), (11, 74175), (15, 54395), (23, 35475), (25, 32637), (33, 24725), (43, 18975), (55, 14835), (69, 11825), (75, 10879), (115, 7095), (129, 6325), (165, 4945), (215, 3795), (253, 3225), (275, 2967), (345, 2365), (473, 1725), (575, 1419), (645, 1265), (759, 1075), (825, 989)]