16280940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20873}}^1$

素因数の和:20898

約数の個数: 48

約数和(自身を含む): 49095648

約数和(自身を除く): 32814708

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, 20873, 41746, 62619, 83492, 104365, 125238, 208730, 250476, 271349, 313095, 417460, 542698, 626190, 814047, 1085396, 1252380, 1356745, 1628094, 2713490, 3256188, 4070235, 5426980, 8140470, 16280940]

約数ペア:

[(1, 16280940), (2, 8140470), (3, 5426980), (4, 4070235), (5, 3256188), (6, 2713490), (10, 1628094), (12, 1356745), (13, 1252380), (15, 1085396), (20, 814047), (26, 626190), (30, 542698), (39, 417460), (52, 313095), (60, 271349), (65, 250476), (78, 208730), (130, 125238), (156, 104365), (195, 83492), (260, 62619), (390, 41746), (780, 20873)]