132481420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1\times {\mathrm{439}}^1$

素因数の和:718

約数の個数: 48

約数和(自身を含む): 283852800

約数和(自身を除く): 151371380

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 191, 316, 382, 395, 439, 764, 790, 878, 955, 1580, 1756, 1910, 2195, 3820, 4390, 8780, 15089, 30178, 34681, 60356, 69362, 75445, 83849, 138724, 150890, 167698, 173405, 301780, 335396, 346810, 419245, 693620, 838490, 1676980, 6624071, 13248142, 26496284, 33120355, 66240710, 132481420]

約数ペア:

[(1, 132481420), (2, 66240710), (4, 33120355), (5, 26496284), (10, 13248142), (20, 6624071), (79, 1676980), (158, 838490), (191, 693620), (316, 419245), (382, 346810), (395, 335396), (439, 301780), (764, 173405), (790, 167698), (878, 150890), (955, 138724), (1580, 83849), (1756, 75445), (1910, 69362), (2195, 60356), (3820, 34681), (4390, 30178), (8780, 15089)]