42747140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{68947}}^1$

素因数の和:68987

約数の個数: 24

約数和(自身を含む): 92666112

約数和(自身を除く): 49918972

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 68947, 137894, 275788, 344735, 689470, 1378940, 2137357, 4274714, 8549428, 10686785, 21373570, 42747140]

約数ペア:

[(1, 42747140), (2, 21373570), (4, 10686785), (5, 8549428), (10, 4274714), (20, 2137357), (31, 1378940), (62, 689470), (124, 344735), (155, 275788), (310, 137894), (620, 68947)]