18635890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20479}}^1$

素因数の和:20506

約数の個数: 32

約数和(自身を含む): 41287680

約数和(自身を除く): 22651790

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 20479, 40958, 102395, 143353, 204790, 266227, 286706, 532454, 716765, 1331135, 1433530, 1863589, 2662270, 3727178, 9317945, 18635890]

約数ペア:

[(1, 18635890), (2, 9317945), (5, 3727178), (7, 2662270), (10, 1863589), (13, 1433530), (14, 1331135), (26, 716765), (35, 532454), (65, 286706), (70, 266227), (91, 204790), (130, 143353), (182, 102395), (455, 40958), (910, 20479)]