82405900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:355

約数の個数: 72

約数和(自身を含む): 185925600

約数和(自身を除く): 103519700

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 101, 164, 199, 202, 205, 398, 404, 410, 505, 796, 820, 995, 1010, 1025, 1990, 2020, 2050, 2525, 3980, 4100, 4141, 4975, 5050, 8159, 8282, 9950, 10100, 16318, 16564, 19900, 20099, 20705, 32636, 40198, 40795, 41410, 80396, 81590, 82820, 100495, 103525, 163180, 200990, 203975, 207050, 401980, 407950, 414100, 502475, 815900, 824059, 1004950, 1648118, 2009900, 3296236, 4120295, 8240590, 16481180, 20601475, 41202950, 82405900]

約数ペア:

[(1, 82405900), (2, 41202950), (4, 20601475), (5, 16481180), (10, 8240590), (20, 4120295), (25, 3296236), (41, 2009900), (50, 1648118), (82, 1004950), (100, 824059), (101, 815900), (164, 502475), (199, 414100), (202, 407950), (205, 401980), (398, 207050), (404, 203975), (410, 200990), (505, 163180), (796, 103525), (820, 100495), (995, 82820), (1010, 81590), (1025, 80396), (1990, 41410), (2020, 40795), (2050, 40198), (2525, 32636), (3980, 20705), (4100, 20099), (4141, 19900), (4975, 16564), (5050, 16318), (8159, 10100), (8282, 9950)]