220174975

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 298552320

約数和(自身を除く): 78377345

約数列:

[1, 5, 23, 25, 37, 79, 115, 131, 185, 395, 575, 655, 851, 925, 1817, 1975, 2923, 3013, 3275, 4255, 4847, 9085, 10349, 14615, 15065, 21275, 24235, 45425, 51745, 67229, 73075, 75325, 111481, 121175, 238027, 258725, 336145, 382913, 557405, 1190135, 1680725, 1914565, 2787025, 5950675, 8806999, 9572825, 44034995, 220174975]

約数ペア:

[(1, 220174975), (5, 44034995), (23, 9572825), (25, 8806999), (37, 5950675), (79, 2787025), (115, 1914565), (131, 1680725), (185, 1190135), (395, 557405), (575, 382913), (655, 336145), (851, 258725), (925, 238027), (1817, 121175), (1975, 111481), (2923, 75325), (3013, 73075), (3275, 67229), (4255, 51745), (4847, 45425), (9085, 24235), (10349, 21275), (14615, 15065)]