164811800

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:357

約数の個数: 96

約数和(自身を含む): 398412000

約数和(自身を除く): 233600200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 101, 164, 199, 200, 202, 205, 328, 398, 404, 410, 505, 796, 808, 820, 995, 1010, 1025, 1592, 1640, 1990, 2020, 2050, 2525, 3980, 4040, 4100, 4141, 4975, 5050, 7960, 8159, 8200, 8282, 9950, 10100, 16318, 16564, 19900, 20099, 20200, 20705, 32636, 33128, 39800, 40198, 40795, 41410, 65272, 80396, 81590, 82820, 100495, 103525, 160792, 163180, 165640, 200990, 203975, 207050, 326360, 401980, 407950, 414100, 502475, 803960, 815900, 824059, 828200, 1004950, 1631800, 1648118, 2009900, 3296236, 4019800, 4120295, 6592472, 8240590, 16481180, 20601475, 32962360, 41202950, 82405900, 164811800]

約数ペア:

[(1, 164811800), (2, 82405900), (4, 41202950), (5, 32962360), (8, 20601475), (10, 16481180), (20, 8240590), (25, 6592472), (40, 4120295), (41, 4019800), (50, 3296236), (82, 2009900), (100, 1648118), (101, 1631800), (164, 1004950), (199, 828200), (200, 824059), (202, 815900), (205, 803960), (328, 502475), (398, 414100), (404, 407950), (410, 401980), (505, 326360), (796, 207050), (808, 203975), (820, 200990), (995, 165640), (1010, 163180), (1025, 160792), (1592, 103525), (1640, 100495), (1990, 82820), (2020, 81590), (2050, 80396), (2525, 65272), (3980, 41410), (4040, 40795), (4100, 40198), (4141, 39800), (4975, 33128), (5050, 32636), (7960, 20705), (8159, 20200), (8200, 20099), (8282, 19900), (9950, 16564), (10100, 16318)]