77889340

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^2$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 175179312

約数和(自身を除く): 97289972

約数列:

[1, 2, 4, 5, 10, 20, 41, 43, 47, 82, 86, 94, 164, 172, 188, 205, 215, 235, 410, 430, 470, 820, 860, 940, 1763, 1927, 2021, 2209, 3526, 3854, 4042, 4418, 7052, 7708, 8084, 8815, 8836, 9635, 10105, 11045, 17630, 19270, 20210, 22090, 35260, 38540, 40420, 44180, 82861, 90569, 94987, 165722, 181138, 189974, 331444, 362276, 379948, 414305, 452845, 474935, 828610, 905690, 949870, 1657220, 1811380, 1899740, 3894467, 7788934, 15577868, 19472335, 38944670, 77889340]

約数ペア:

[(1, 77889340), (2, 38944670), (4, 19472335), (5, 15577868), (10, 7788934), (20, 3894467), (41, 1899740), (43, 1811380), (47, 1657220), (82, 949870), (86, 905690), (94, 828610), (164, 474935), (172, 452845), (188, 414305), (205, 379948), (215, 362276), (235, 331444), (410, 189974), (430, 181138), (470, 165722), (820, 94987), (860, 90569), (940, 82861), (1763, 44180), (1927, 40420), (2021, 38540), (2209, 35260), (3526, 22090), (3854, 20210), (4042, 19270), (4418, 17630), (7052, 11045), (7708, 10105), (8084, 9635), (8815, 8836)]