78871880

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67993}}^1$

素因数の和:68033

約数の個数: 32

約数和(自身を含む): 183583800

約数和(自身を除く): 104711920

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 67993, 135986, 271972, 339965, 543944, 679930, 1359860, 1971797, 2719720, 3943594, 7887188, 9858985, 15774376, 19717970, 39435940, 78871880]

約数ペア:

[(1, 78871880), (2, 39435940), (4, 19717970), (5, 15774376), (8, 9858985), (10, 7887188), (20, 3943594), (29, 2719720), (40, 1971797), (58, 1359860), (116, 679930), (145, 543944), (232, 339965), (290, 271972), (580, 135986), (1160, 67993)]