28013865

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{101}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 50614848

約数和(自身を除く): 22600983

約数列:

[1, 3, 5, 11, 15, 33, 41, 55, 101, 123, 165, 205, 303, 451, 505, 615, 1111, 1353, 1515, 1681, 2255, 3333, 4141, 5043, 5555, 6765, 8405, 12423, 16665, 18491, 20705, 25215, 45551, 55473, 62115, 92455, 136653, 169781, 227755, 277365, 509343, 683265, 848905, 1867591, 2546715, 5602773, 9337955, 28013865]

約数ペア:

[(1, 28013865), (3, 9337955), (5, 5602773), (11, 2546715), (15, 1867591), (33, 848905), (41, 683265), (55, 509343), (101, 277365), (123, 227755), (165, 169781), (205, 136653), (303, 92455), (451, 62115), (505, 55473), (615, 45551), (1111, 25215), (1353, 20705), (1515, 18491), (1681, 16665), (2255, 12423), (3333, 8405), (4141, 6765), (5043, 5555)]