20240

素因数分解:

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

素因数の和:47

約数の個数: 40

約数和(自身を含む): 53568

約数和(自身を除く): 33328

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, 1265, 1840, 2024, 2530, 4048, 5060, 10120, 20240]

約数ペア:

[(1, 20240), (2, 10120), (4, 5060), (5, 4048), (8, 2530), (10, 2024), (11, 1840), (16, 1265), (20, 1012), (22, 920), (23, 880), (40, 506), (44, 460), (46, 440), (55, 368), (80, 253), (88, 230), (92, 220), (110, 184), (115, 176)]