128450920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{733}}^1$

素因数の和:1094

約数の個数: 64

約数和(自身を含む): 312595920

約数和(自身を除く): 184145000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 337, 520, 674, 733, 1348, 1466, 1685, 2696, 2932, 3370, 3665, 4381, 5864, 6740, 7330, 8762, 9529, 13480, 14660, 17524, 19058, 21905, 29320, 35048, 38116, 43810, 47645, 76232, 87620, 95290, 175240, 190580, 247021, 381160, 494042, 988084, 1235105, 1976168, 2470210, 3211273, 4940420, 6422546, 9880840, 12845092, 16056365, 25690184, 32112730, 64225460, 128450920]

約数ペア:

[(1, 128450920), (2, 64225460), (4, 32112730), (5, 25690184), (8, 16056365), (10, 12845092), (13, 9880840), (20, 6422546), (26, 4940420), (40, 3211273), (52, 2470210), (65, 1976168), (104, 1235105), (130, 988084), (260, 494042), (337, 381160), (520, 247021), (674, 190580), (733, 175240), (1348, 95290), (1466, 87620), (1685, 76232), (2696, 47645), (2932, 43810), (3370, 38116), (3665, 35048), (4381, 29320), (5864, 21905), (6740, 19058), (7330, 17524), (8762, 14660), (9529, 13480)]