638291255

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{10487}}^1$

素因数の和:10583

約数の個数: 32

約数和(自身を含む): 918245376

約数和(自身を除く): 279954121

約数列:

[1, 5, 7, 35, 37, 47, 185, 235, 259, 329, 1295, 1645, 1739, 8695, 10487, 12173, 52435, 60865, 73409, 367045, 388019, 492889, 1940095, 2464445, 2716133, 3450223, 13580665, 17251115, 18236893, 91184465, 127658251, 638291255]

約数ペア:

[(1, 638291255), (5, 127658251), (7, 91184465), (35, 18236893), (37, 17251115), (47, 13580665), (185, 3450223), (235, 2716133), (259, 2464445), (329, 1940095), (1295, 492889), (1645, 388019), (1739, 367045), (8695, 73409), (10487, 60865), (12173, 52435)]