21636560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1069}}^1$

素因数の和:1116

約数の個数: 80

約数和(自身を含む): 57317760

約数和(自身を除く): 35681200

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 40, 44, 46, 55, 80, 88, 92, 110, 115, 176, 184, 220, 230, 253, 368, 440, 460, 506, 880, 920, 1012, 1069, 1265, 1840, 2024, 2138, 2530, 4048, 4276, 5060, 5345, 8552, 10120, 10690, 11759, 17104, 20240, 21380, 23518, 24587, 42760, 47036, 49174, 58795, 85520, 94072, 98348, 117590, 122935, 188144, 196696, 235180, 245870, 270457, 393392, 470360, 491740, 540914, 940720, 983480, 1081828, 1352285, 1966960, 2163656, 2704570, 4327312, 5409140, 10818280, 21636560]

約数ペア:

[(1, 21636560), (2, 10818280), (4, 5409140), (5, 4327312), (8, 2704570), (10, 2163656), (11, 1966960), (16, 1352285), (20, 1081828), (22, 983480), (23, 940720), (40, 540914), (44, 491740), (46, 470360), (55, 393392), (80, 270457), (88, 245870), (92, 235180), (110, 196696), (115, 188144), (176, 122935), (184, 117590), (220, 98348), (230, 94072), (253, 85520), (368, 58795), (440, 49174), (460, 47036), (506, 42760), (880, 24587), (920, 23518), (1012, 21380), (1069, 20240), (1265, 17104), (1840, 11759), (2024, 10690), (2138, 10120), (2530, 8552), (4048, 5345), (4276, 5060)]