891140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2621}}^1$

素因数の和:2647

約数の個数: 24

約数和(自身を含む): 1982232

約数和(自身を除く): 1091092

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 2621, 5242, 10484, 13105, 26210, 44557, 52420, 89114, 178228, 222785, 445570, 891140]

約数ペア:

[(1, 891140), (2, 445570), (4, 222785), (5, 178228), (10, 89114), (17, 52420), (20, 44557), (34, 26210), (68, 13105), (85, 10484), (170, 5242), (340, 2621)]