82871740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{821}}^1$

素因数の和:947

約数の個数: 72

約数和(自身を含む): 204658272

約数和(自身を除く): 121786532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 103, 140, 196, 206, 245, 412, 490, 515, 721, 821, 980, 1030, 1442, 1642, 2060, 2884, 3284, 3605, 4105, 5047, 5747, 7210, 8210, 10094, 11494, 14420, 16420, 20188, 22988, 25235, 28735, 40229, 50470, 57470, 80458, 84563, 100940, 114940, 160916, 169126, 201145, 338252, 402290, 422815, 591941, 804580, 845630, 1183882, 1691260, 2367764, 2959705, 4143587, 5919410, 8287174, 11838820, 16574348, 20717935, 41435870, 82871740]

約数ペア:

[(1, 82871740), (2, 41435870), (4, 20717935), (5, 16574348), (7, 11838820), (10, 8287174), (14, 5919410), (20, 4143587), (28, 2959705), (35, 2367764), (49, 1691260), (70, 1183882), (98, 845630), (103, 804580), (140, 591941), (196, 422815), (206, 402290), (245, 338252), (412, 201145), (490, 169126), (515, 160916), (721, 114940), (821, 100940), (980, 84563), (1030, 80458), (1442, 57470), (1642, 50470), (2060, 40229), (2884, 28735), (3284, 25235), (3605, 22988), (4105, 20188), (5047, 16420), (5747, 14420), (7210, 11494), (8210, 10094)]