8045335180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^2\times {\mathrm{199}}^1\times {\mathrm{401}}^1$

素因数の和:751

約数の個数: 72

約数和(自身を含む): 17265578400

約数和(自身を除く): 9220243220

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 199, 284, 355, 398, 401, 710, 796, 802, 995, 1420, 1604, 1990, 2005, 3980, 4010, 5041, 8020, 10082, 14129, 20164, 25205, 28258, 28471, 50410, 56516, 56942, 70645, 79799, 100820, 113884, 141290, 142355, 159598, 282580, 284710, 319196, 398995, 569420, 797990, 1003159, 1595980, 2006318, 2021441, 4012636, 4042882, 5015795, 5665729, 8085764, 10031590, 10107205, 11331458, 20063180, 20214410, 22662916, 28328645, 40428820, 56657290, 113314580, 402266759, 804533518, 1609067036, 2011333795, 4022667590, 8045335180]

約数ペア:

[(1, 8045335180), (2, 4022667590), (4, 2011333795), (5, 1609067036), (10, 804533518), (20, 402266759), (71, 113314580), (142, 56657290), (199, 40428820), (284, 28328645), (355, 22662916), (398, 20214410), (401, 20063180), (710, 11331458), (796, 10107205), (802, 10031590), (995, 8085764), (1420, 5665729), (1604, 5015795), (1990, 4042882), (2005, 4012636), (3980, 2021441), (4010, 2006318), (5041, 1595980), (8020, 1003159), (10082, 797990), (14129, 569420), (20164, 398995), (25205, 319196), (28258, 284710), (28471, 282580), (50410, 159598), (56516, 142355), (56942, 141290), (70645, 113884), (79799, 100820)]