2660240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3023}}^1$

素因数の和:3047

約数の個数: 40

約数和(自身を含む): 6749568

約数和(自身を除く): 4089328

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 3023, 6046, 12092, 15115, 24184, 30230, 33253, 48368, 60460, 66506, 120920, 133012, 166265, 241840, 266024, 332530, 532048, 665060, 1330120, 2660240]

約数ペア:

[(1, 2660240), (2, 1330120), (4, 665060), (5, 532048), (8, 332530), (10, 266024), (11, 241840), (16, 166265), (20, 133012), (22, 120920), (40, 66506), (44, 60460), (55, 48368), (80, 33253), (88, 30230), (110, 24184), (176, 15115), (220, 12092), (440, 6046), (880, 3023)]