87231800

素因数分解:

$2^3\times 5^2\times {\mathrm{79}}^1\times {\mathrm{5521}}^1$

素因数の和:5616

約数の個数: 48

約数和(自身を含む): 205418400

約数和(自身を除く): 118186600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 158, 200, 316, 395, 632, 790, 1580, 1975, 3160, 3950, 5521, 7900, 11042, 15800, 22084, 27605, 44168, 55210, 110420, 138025, 220840, 276050, 436159, 552100, 872318, 1104200, 1744636, 2180795, 3489272, 4361590, 8723180, 10903975, 17446360, 21807950, 43615900, 87231800]

約数ペア:

[(1, 87231800), (2, 43615900), (4, 21807950), (5, 17446360), (8, 10903975), (10, 8723180), (20, 4361590), (25, 3489272), (40, 2180795), (50, 1744636), (79, 1104200), (100, 872318), (158, 552100), (200, 436159), (316, 276050), (395, 220840), (632, 138025), (790, 110420), (1580, 55210), (1975, 44168), (3160, 27605), (3950, 22084), (5521, 15800), (7900, 11042)]