2018380900

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{271}}^1\times {\mathrm{1049}}^1$

素因数の和:1405

約数の個数: 72

約数和(自身を含む): 4462214400

約数和(自身を除く): 2443833500

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 271, 284, 355, 542, 710, 1049, 1084, 1355, 1420, 1775, 2098, 2710, 3550, 4196, 5245, 5420, 6775, 7100, 10490, 13550, 19241, 20980, 26225, 27100, 38482, 52450, 74479, 76964, 96205, 104900, 148958, 192410, 284279, 297916, 372395, 384820, 481025, 568558, 744790, 962050, 1137116, 1421395, 1489580, 1861975, 1924100, 2842790, 3723950, 5685580, 7106975, 7447900, 14213950, 20183809, 28427900, 40367618, 80735236, 100919045, 201838090, 403676180, 504595225, 1009190450, 2018380900]

約数ペア:

[(1, 2018380900), (2, 1009190450), (4, 504595225), (5, 403676180), (10, 201838090), (20, 100919045), (25, 80735236), (50, 40367618), (71, 28427900), (100, 20183809), (142, 14213950), (271, 7447900), (284, 7106975), (355, 5685580), (542, 3723950), (710, 2842790), (1049, 1924100), (1084, 1861975), (1355, 1489580), (1420, 1421395), (1775, 1137116), (2098, 962050), (2710, 744790), (3550, 568558), (4196, 481025), (5245, 384820), (5420, 372395), (6775, 297916), (7100, 284279), (10490, 192410), (13550, 148958), (19241, 104900), (20980, 96205), (26225, 76964), (27100, 74479), (38482, 52450)]