79713880

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{389}}^1$

素因数の和:556

約数の個数: 64

約数和(自身を含む): 185328000

約数和(自身を除く): 105614120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 109, 188, 218, 235, 376, 389, 436, 470, 545, 778, 872, 940, 1090, 1556, 1880, 1945, 2180, 3112, 3890, 4360, 5123, 7780, 10246, 15560, 18283, 20492, 25615, 36566, 40984, 42401, 51230, 73132, 84802, 91415, 102460, 146264, 169604, 182830, 204920, 212005, 339208, 365660, 424010, 731320, 848020, 1696040, 1992847, 3985694, 7971388, 9964235, 15942776, 19928470, 39856940, 79713880]

約数ペア:

[(1, 79713880), (2, 39856940), (4, 19928470), (5, 15942776), (8, 9964235), (10, 7971388), (20, 3985694), (40, 1992847), (47, 1696040), (94, 848020), (109, 731320), (188, 424010), (218, 365660), (235, 339208), (376, 212005), (389, 204920), (436, 182830), (470, 169604), (545, 146264), (778, 102460), (872, 91415), (940, 84802), (1090, 73132), (1556, 51230), (1880, 42401), (1945, 40984), (2180, 36566), (3112, 25615), (3890, 20492), (4360, 18283), (5123, 15560), (7780, 10246)]