28552940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109819}}^1$

素因数の和:109841

約数の個数: 24

約数和(自身を含む): 64574160

約数和(自身を除く): 36021220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 109819, 219638, 439276, 549095, 1098190, 1427647, 2196380, 2855294, 5710588, 7138235, 14276470, 28552940]

約数ペア:

[(1, 28552940), (2, 14276470), (4, 7138235), (5, 5710588), (10, 2855294), (13, 2196380), (20, 1427647), (26, 1098190), (52, 549095), (65, 439276), (130, 219638), (260, 109819)]