20015816

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{3559}}^1$

素因数の和:3621

約数の個数: 32

約数和(自身を含む): 40584000

約数和(自身を除く): 20568184

約数列:

[1, 2, 4, 8, 19, 37, 38, 74, 76, 148, 152, 296, 703, 1406, 2812, 3559, 5624, 7118, 14236, 28472, 67621, 131683, 135242, 263366, 270484, 526732, 540968, 1053464, 2501977, 5003954, 10007908, 20015816]

約数ペア:

[(1, 20015816), (2, 10007908), (4, 5003954), (8, 2501977), (19, 1053464), (37, 540968), (38, 526732), (74, 270484), (76, 263366), (148, 135242), (152, 131683), (296, 67621), (703, 28472), (1406, 14236), (2812, 7118), (3559, 5624)]