85661240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{305933}}^1$

素因数の和:305951

約数の個数: 32

約数和(自身を含む): 220272480

約数和(自身を除く): 134611240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 305933, 611866, 1223732, 1529665, 2141531, 2447464, 3059330, 4283062, 6118660, 8566124, 10707655, 12237320, 17132248, 21415310, 42830620, 85661240]

約数ペア:

[(1, 85661240), (2, 42830620), (4, 21415310), (5, 17132248), (7, 12237320), (8, 10707655), (10, 8566124), (14, 6118660), (20, 4283062), (28, 3059330), (35, 2447464), (40, 2141531), (56, 1529665), (70, 1223732), (140, 611866), (280, 305933)]