128889020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{1471}}^1$

素因数の和:1830

約数の個数: 48

約数和(自身を含む): 292551168

約数和(自身を除く): 163662148

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 337, 674, 1348, 1471, 1685, 2942, 3370, 4381, 5884, 6740, 7355, 8762, 14710, 17524, 19123, 21905, 29420, 38246, 43810, 76492, 87620, 95615, 191230, 382460, 495727, 991454, 1982908, 2478635, 4957270, 6444451, 9914540, 12888902, 25777804, 32222255, 64444510, 128889020]

約数ペア:

[(1, 128889020), (2, 64444510), (4, 32222255), (5, 25777804), (10, 12888902), (13, 9914540), (20, 6444451), (26, 4957270), (52, 2478635), (65, 1982908), (130, 991454), (260, 495727), (337, 382460), (674, 191230), (1348, 95615), (1471, 87620), (1685, 76492), (2942, 43810), (3370, 38246), (4381, 29420), (5884, 21905), (6740, 19123), (7355, 17524), (8762, 14710)]