20082220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{293}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 44452800

約数和(自身を除く): 24370580

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 149, 230, 293, 298, 460, 586, 596, 745, 1172, 1465, 1490, 2930, 2980, 3427, 5860, 6739, 6854, 13478, 13708, 17135, 26956, 33695, 34270, 43657, 67390, 68540, 87314, 134780, 174628, 218285, 436570, 873140, 1004111, 2008222, 4016444, 5020555, 10041110, 20082220]

約数ペア:

[(1, 20082220), (2, 10041110), (4, 5020555), (5, 4016444), (10, 2008222), (20, 1004111), (23, 873140), (46, 436570), (92, 218285), (115, 174628), (149, 134780), (230, 87314), (293, 68540), (298, 67390), (460, 43657), (586, 34270), (596, 33695), (745, 26956), (1172, 17135), (1465, 13708), (1490, 13478), (2930, 6854), (2980, 6739), (3427, 5860)]