65645320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{126241}}^1$

素因数の和:126265

約数の個数: 32

約数和(自身を含む): 159064920

約数和(自身を除く): 93419600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 126241, 252482, 504964, 631205, 1009928, 1262410, 1641133, 2524820, 3282266, 5049640, 6564532, 8205665, 13129064, 16411330, 32822660, 65645320]

約数ペア:

[(1, 65645320), (2, 32822660), (4, 16411330), (5, 13129064), (8, 8205665), (10, 6564532), (13, 5049640), (20, 3282266), (26, 2524820), (40, 1641133), (52, 1262410), (65, 1009928), (104, 631205), (130, 504964), (260, 252482), (520, 126241)]