78901940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{303469}}^1$

素因数の和:303491

約数の個数: 24

約数和(自身を含む): 178440360

約数和(自身を除く): 99538420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 303469, 606938, 1213876, 1517345, 3034690, 3945097, 6069380, 7890194, 15780388, 19725485, 39450970, 78901940]

約数ペア:

[(1, 78901940), (2, 39450970), (4, 19725485), (5, 15780388), (10, 7890194), (13, 6069380), (20, 3945097), (26, 3034690), (52, 1517345), (65, 1213876), (130, 606938), (260, 303469)]