1340240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1523}}^1$

素因数の和:1547

約数の個数: 40

約数和(自身を含む): 3401568

約数和(自身を除く): 2061328

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 1523, 3046, 6092, 7615, 12184, 15230, 16753, 24368, 30460, 33506, 60920, 67012, 83765, 121840, 134024, 167530, 268048, 335060, 670120, 1340240]

約数ペア:

[(1, 1340240), (2, 670120), (4, 335060), (5, 268048), (8, 167530), (10, 134024), (11, 121840), (16, 83765), (20, 67012), (22, 60920), (40, 33506), (44, 30460), (55, 24368), (80, 16753), (88, 15230), (110, 12184), (176, 7615), (220, 6092), (440, 3046), (880, 1523)]