77879440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1013}}^1$

素因数の和:1088

約数の個数: 60

約数和(自身を含む): 187283772

約数和(自身を除く): 109404332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 961, 1013, 1240, 1922, 2026, 2480, 3844, 4052, 4805, 5065, 7688, 8104, 9610, 10130, 15376, 16208, 19220, 20260, 31403, 38440, 40520, 62806, 76880, 81040, 125612, 157015, 251224, 314030, 502448, 628060, 973493, 1256120, 1946986, 2512240, 3893972, 4867465, 7787944, 9734930, 15575888, 19469860, 38939720, 77879440]

約数ペア:

[(1, 77879440), (2, 38939720), (4, 19469860), (5, 15575888), (8, 9734930), (10, 7787944), (16, 4867465), (20, 3893972), (31, 2512240), (40, 1946986), (62, 1256120), (80, 973493), (124, 628060), (155, 502448), (248, 314030), (310, 251224), (496, 157015), (620, 125612), (961, 81040), (1013, 76880), (1240, 62806), (1922, 40520), (2026, 38440), (2480, 31403), (3844, 20260), (4052, 19220), (4805, 16208), (5065, 15376), (7688, 10130), (8104, 9610)]