81562680

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{75521}}^1$

素因数の和:75541

約数の個数: 64

約数和(自身を含む): 271879200

約数和(自身を除く): 190316520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 75521, 151042, 226563, 302084, 377605, 453126, 604168, 679689, 755210, 906252, 1132815, 1359378, 1510420, 1812504, 2039067, 2265630, 2718756, 3020840, 3398445, 4078134, 4531260, 5437512, 6796890, 8156268, 9062520, 10195335, 13593780, 16312536, 20390670, 27187560, 40781340, 81562680]

約数ペア:

[(1, 81562680), (2, 40781340), (3, 27187560), (4, 20390670), (5, 16312536), (6, 13593780), (8, 10195335), (9, 9062520), (10, 8156268), (12, 6796890), (15, 5437512), (18, 4531260), (20, 4078134), (24, 3398445), (27, 3020840), (30, 2718756), (36, 2265630), (40, 2039067), (45, 1812504), (54, 1510420), (60, 1359378), (72, 1132815), (90, 906252), (108, 755210), (120, 679689), (135, 604168), (180, 453126), (216, 377605), (270, 302084), (360, 226563), (540, 151042), (1080, 75521)]