20140520420

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{277}}^1\times {\mathrm{49801}}^1$

素因数の和:50160

約数の個数: 48

約数和(自身を含む): 43030123248

約数和(自身を除く): 22889602828

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 277, 292, 365, 554, 730, 1108, 1385, 1460, 2770, 5540, 20221, 40442, 49801, 80884, 99602, 101105, 199204, 202210, 249005, 404420, 498010, 996020, 3635473, 7270946, 13794877, 14541892, 18177365, 27589754, 36354730, 55179508, 68974385, 72709460, 137948770, 275897540, 1007026021, 2014052042, 4028104084, 5035130105, 10070260210, 20140520420]

約数ペア:

[(1, 20140520420), (2, 10070260210), (4, 5035130105), (5, 4028104084), (10, 2014052042), (20, 1007026021), (73, 275897540), (146, 137948770), (277, 72709460), (292, 68974385), (365, 55179508), (554, 36354730), (730, 27589754), (1108, 18177365), (1385, 14541892), (1460, 13794877), (2770, 7270946), (5540, 3635473), (20221, 996020), (40442, 498010), (49801, 404420), (80884, 249005), (99602, 202210), (101105, 199204)]