9820120

素因数分解:

$2^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{641}}^1$

素因数の和:1035

約数の個数: 32

約数和(自身を含む): 22187520

約数和(自身を除く): 12367400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 383, 641, 766, 1282, 1532, 1915, 2564, 3064, 3205, 3830, 5128, 6410, 7660, 12820, 15320, 25640, 245503, 491006, 982012, 1227515, 1964024, 2455030, 4910060, 9820120]

約数ペア:

[(1, 9820120), (2, 4910060), (4, 2455030), (5, 1964024), (8, 1227515), (10, 982012), (20, 491006), (40, 245503), (383, 25640), (641, 15320), (766, 12820), (1282, 7660), (1532, 6410), (1915, 5128), (2564, 3830), (3064, 3205)]