209260360

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{1367}}^1$

素因数の和:1510

約数の個数: 64

約数和(自身を含む): 487555200

約数和(自身を除く): 278294840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 89, 172, 178, 215, 344, 356, 430, 445, 712, 860, 890, 1367, 1720, 1780, 2734, 3560, 3827, 5468, 6835, 7654, 10936, 13670, 15308, 19135, 27340, 30616, 38270, 54680, 58781, 76540, 117562, 121663, 153080, 235124, 243326, 293905, 470248, 486652, 587810, 608315, 973304, 1175620, 1216630, 2351240, 2433260, 4866520, 5231509, 10463018, 20926036, 26157545, 41852072, 52315090, 104630180, 209260360]

約数ペア:

[(1, 209260360), (2, 104630180), (4, 52315090), (5, 41852072), (8, 26157545), (10, 20926036), (20, 10463018), (40, 5231509), (43, 4866520), (86, 2433260), (89, 2351240), (172, 1216630), (178, 1175620), (215, 973304), (344, 608315), (356, 587810), (430, 486652), (445, 470248), (712, 293905), (860, 243326), (890, 235124), (1367, 153080), (1720, 121663), (1780, 117562), (2734, 76540), (3560, 58781), (3827, 54680), (5468, 38270), (6835, 30616), (7654, 27340), (10936, 19135), (13670, 15308)]