20790721312

素因数分解:

$2^5\times {\mathrm{16981}}^1\times {\mathrm{38261}}^1$

素因数の和:55252

約数の個数: 24

約数和(自身を含む): 40935212892

約数和(自身を除く): 20144491580

約数列:

[1, 2, 4, 8, 16, 32, 16981, 33962, 38261, 67924, 76522, 135848, 153044, 271696, 306088, 543392, 612176, 1224352, 649710041, 1299420082, 2598840164, 5197680328, 10395360656, 20790721312]

約数ペア:

[(1, 20790721312), (2, 10395360656), (4, 5197680328), (8, 2598840164), (16, 1299420082), (32, 649710041), (16981, 1224352), (33962, 612176), (38261, 543392), (67924, 306088), (76522, 271696), (135848, 153044)]