25812040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{349}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 59629500

約数和(自身を除く): 33817460

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 349, 430, 698, 860, 1396, 1720, 1745, 1849, 2792, 3490, 3698, 6980, 7396, 9245, 13960, 14792, 15007, 18490, 30014, 36980, 60028, 73960, 75035, 120056, 150070, 300140, 600280, 645301, 1290602, 2581204, 3226505, 5162408, 6453010, 12906020, 25812040]

約数ペア:

[(1, 25812040), (2, 12906020), (4, 6453010), (5, 5162408), (8, 3226505), (10, 2581204), (20, 1290602), (40, 645301), (43, 600280), (86, 300140), (172, 150070), (215, 120056), (344, 75035), (349, 73960), (430, 60028), (698, 36980), (860, 30014), (1396, 18490), (1720, 15007), (1745, 14792), (1849, 13960), (2792, 9245), (3490, 7396), (3698, 6980)]