20106918280

素因数分解:

$2^3\times 5^1\times {\mathrm{9311}}^1\times {\mathrm{53987}}^1$

素因数の和:63309

約数の個数: 32

約数和(自身を含む): 45246263040

約数和(自身を除く): 25139344760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9311, 18622, 37244, 46555, 53987, 74488, 93110, 107974, 186220, 215948, 269935, 372440, 431896, 539870, 1079740, 2159480, 502672957, 1005345914, 2010691828, 2513364785, 4021383656, 5026729570, 10053459140, 20106918280]

約数ペア:

[(1, 20106918280), (2, 10053459140), (4, 5026729570), (5, 4021383656), (8, 2513364785), (10, 2010691828), (20, 1005345914), (40, 502672957), (9311, 2159480), (18622, 1079740), (37244, 539870), (46555, 431896), (53987, 372440), (74488, 269935), (93110, 215948), (107974, 186220)]