40809820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1123}}^1$

素因数の和:1234

約数の個数: 48

約数和(自身を含む): 90639360

約数和(自身を除く): 49829540

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 79, 92, 115, 158, 230, 316, 395, 460, 790, 1123, 1580, 1817, 2246, 3634, 4492, 5615, 7268, 9085, 11230, 18170, 22460, 25829, 36340, 51658, 88717, 103316, 129145, 177434, 258290, 354868, 443585, 516580, 887170, 1774340, 2040491, 4080982, 8161964, 10202455, 20404910, 40809820]

約数ペア:

[(1, 40809820), (2, 20404910), (4, 10202455), (5, 8161964), (10, 4080982), (20, 2040491), (23, 1774340), (46, 887170), (79, 516580), (92, 443585), (115, 354868), (158, 258290), (230, 177434), (316, 129145), (395, 103316), (460, 88717), (790, 51658), (1123, 36340), (1580, 25829), (1817, 22460), (2246, 18170), (3634, 11230), (4492, 9085), (5615, 7268)]