268590920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{516521}}^1$

素因数の和:516545

約数の個数: 32

約数和(自身を含む): 650817720

約数和(自身を除く): 382226800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 516521, 1033042, 2066084, 2582605, 4132168, 5165210, 6714773, 10330420, 13429546, 20660840, 26859092, 33573865, 53718184, 67147730, 134295460, 268590920]

約数ペア:

[(1, 268590920), (2, 134295460), (4, 67147730), (5, 53718184), (8, 33573865), (10, 26859092), (13, 20660840), (20, 13429546), (26, 10330420), (40, 6714773), (52, 5165210), (65, 4132168), (104, 2582605), (130, 2066084), (260, 1033042), (520, 516521)]