77821900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{59863}}^1$

素因数の和:59890

約数の個数: 36

約数和(自身を含む): 181866832

約数和(自身を除く): 104044932

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 59863, 119726, 239452, 299315, 598630, 778219, 1197260, 1496575, 1556438, 2993150, 3112876, 3891095, 5986300, 7782190, 15564380, 19455475, 38910950, 77821900]

約数ペア:

[(1, 77821900), (2, 38910950), (4, 19455475), (5, 15564380), (10, 7782190), (13, 5986300), (20, 3891095), (25, 3112876), (26, 2993150), (50, 1556438), (52, 1496575), (65, 1197260), (100, 778219), (130, 598630), (260, 299315), (325, 239452), (650, 119726), (1300, 59863)]