80024720

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^2\times {\mathrm{541}}^1$

素因数の和:640

約数の個数: 60

約数和(自身を含む): 190837116

約数和(自身を除く): 110812396

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 541, 688, 860, 1082, 1720, 1849, 2164, 2705, 3440, 3698, 4328, 5410, 7396, 8656, 9245, 10820, 14792, 18490, 21640, 23263, 29584, 36980, 43280, 46526, 73960, 93052, 116315, 147920, 186104, 232630, 372208, 465260, 930520, 1000309, 1861040, 2000618, 4001236, 5001545, 8002472, 10003090, 16004944, 20006180, 40012360, 80024720]

約数ペア:

[(1, 80024720), (2, 40012360), (4, 20006180), (5, 16004944), (8, 10003090), (10, 8002472), (16, 5001545), (20, 4001236), (40, 2000618), (43, 1861040), (80, 1000309), (86, 930520), (172, 465260), (215, 372208), (344, 232630), (430, 186104), (541, 147920), (688, 116315), (860, 93052), (1082, 73960), (1720, 46526), (1849, 43280), (2164, 36980), (2705, 29584), (3440, 23263), (3698, 21640), (4328, 18490), (5410, 14792), (7396, 10820), (8656, 9245)]