20938280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2069}}^1$

素因数の和:2114

約数の個数: 64

約数和(自身を含む): 53654400

約数和(自身を除く): 32716120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1265, 2024, 2069, 2530, 4138, 5060, 8276, 10120, 10345, 16552, 20690, 22759, 41380, 45518, 47587, 82760, 91036, 95174, 113795, 182072, 190348, 227590, 237935, 380696, 455180, 475870, 523457, 910360, 951740, 1046914, 1903480, 2093828, 2617285, 4187656, 5234570, 10469140, 20938280]

約数ペア:

[(1, 20938280), (2, 10469140), (4, 5234570), (5, 4187656), (8, 2617285), (10, 2093828), (11, 1903480), (20, 1046914), (22, 951740), (23, 910360), (40, 523457), (44, 475870), (46, 455180), (55, 380696), (88, 237935), (92, 227590), (110, 190348), (115, 182072), (184, 113795), (220, 95174), (230, 91036), (253, 82760), (440, 47587), (460, 45518), (506, 41380), (920, 22759), (1012, 20690), (1265, 16552), (2024, 10345), (2069, 10120), (2530, 8276), (4138, 5060)]