12840380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2237}}^1$

素因数の和:2294

約数の個数: 48

約数和(自身を含む): 31582656

約数和(自身を除く): 18742276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2237, 2870, 4474, 5740, 8948, 11185, 15659, 22370, 31318, 44740, 62636, 78295, 91717, 156590, 183434, 313180, 366868, 458585, 642019, 917170, 1284038, 1834340, 2568076, 3210095, 6420190, 12840380]

約数ペア:

[(1, 12840380), (2, 6420190), (4, 3210095), (5, 2568076), (7, 1834340), (10, 1284038), (14, 917170), (20, 642019), (28, 458585), (35, 366868), (41, 313180), (70, 183434), (82, 156590), (140, 91717), (164, 78295), (205, 62636), (287, 44740), (410, 31318), (574, 22370), (820, 15659), (1148, 11185), (1435, 8948), (2237, 5740), (2870, 4474)]