643143670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{159589}}^1$

素因数の和:159640

約数の個数: 32

約数和(自身を含む): 1286933760

約数和(自身を除く): 643790090

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 159589, 319178, 797945, 1595890, 2074657, 4149314, 4947259, 9894518, 10373285, 20746570, 24736295, 49472590, 64314367, 128628734, 321571835, 643143670]

約数ペア:

[(1, 643143670), (2, 321571835), (5, 128628734), (10, 64314367), (13, 49472590), (26, 24736295), (31, 20746570), (62, 10373285), (65, 9894518), (130, 4947259), (155, 4149314), (310, 2074657), (403, 1595890), (806, 797945), (2015, 319178), (4030, 159589)]