72907880

素因数分解:

$2^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{4759}}^1$

素因数の和:5153

約数の個数: 32

約数和(自身を含む): 164505600

約数和(自身を除く): 91597720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 383, 766, 1532, 1915, 3064, 3830, 4759, 7660, 9518, 15320, 19036, 23795, 38072, 47590, 95180, 190360, 1822697, 3645394, 7290788, 9113485, 14581576, 18226970, 36453940, 72907880]

約数ペア:

[(1, 72907880), (2, 36453940), (4, 18226970), (5, 14581576), (8, 9113485), (10, 7290788), (20, 3645394), (40, 1822697), (383, 190360), (766, 95180), (1532, 47590), (1915, 38072), (3064, 23795), (3830, 19036), (4759, 15320), (7660, 9518)]