81549780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{104551}}^1$

素因数の和:104576

約数の個数: 48

約数和(自身を含む): 245906304

約数和(自身を除く): 164356524

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 104551, 209102, 313653, 418204, 522755, 627306, 1045510, 1254612, 1359163, 1568265, 2091020, 2718326, 3136530, 4077489, 5436652, 6273060, 6795815, 8154978, 13591630, 16309956, 20387445, 27183260, 40774890, 81549780]

約数ペア:

[(1, 81549780), (2, 40774890), (3, 27183260), (4, 20387445), (5, 16309956), (6, 13591630), (10, 8154978), (12, 6795815), (13, 6273060), (15, 5436652), (20, 4077489), (26, 3136530), (30, 2718326), (39, 2091020), (52, 1568265), (60, 1359163), (65, 1254612), (78, 1045510), (130, 627306), (156, 522755), (195, 418204), (260, 313653), (390, 209102), (780, 104551)]