38471140

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{21613}}^1$

素因数の和:21711

約数の個数: 24

約数和(自身を含む): 81700920

約数和(自身を除く): 43229780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 21613, 43226, 86452, 108065, 216130, 432260, 1923557, 3847114, 7694228, 9617785, 19235570, 38471140]

約数ペア:

[(1, 38471140), (2, 19235570), (4, 9617785), (5, 7694228), (10, 3847114), (20, 1923557), (89, 432260), (178, 216130), (356, 108065), (445, 86452), (890, 43226), (1780, 21613)]