20454830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{9787}}^1$

素因数の和:9824

約数の個数: 32

約数和(自身を含む): 42284160

約数和(自身を除く): 21829330

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 9787, 19574, 48935, 97870, 107657, 185953, 215314, 371906, 538285, 929765, 1076570, 1859530, 2045483, 4090966, 10227415, 20454830]

約数ペア:

[(1, 20454830), (2, 10227415), (5, 4090966), (10, 2045483), (11, 1859530), (19, 1076570), (22, 929765), (38, 538285), (55, 371906), (95, 215314), (110, 185953), (190, 107657), (209, 97870), (418, 48935), (1045, 19574), (2090, 9787)]