195457280

素因数分解:

$2^8\times 5^1\times {\mathrm{311}}^1\times {\mathrm{491}}^1$

素因数の和:823

約数の個数: 72

約数和(自身を含む): 470643264

約数和(自身を除く): 275185984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 311, 320, 491, 622, 640, 982, 1244, 1280, 1555, 1964, 2455, 2488, 3110, 3928, 4910, 4976, 6220, 7856, 9820, 9952, 12440, 15712, 19640, 19904, 24880, 31424, 39280, 39808, 49760, 62848, 78560, 79616, 99520, 125696, 152701, 157120, 199040, 305402, 314240, 398080, 610804, 628480, 763505, 1221608, 1527010, 2443216, 3054020, 4886432, 6108040, 9772864, 12216080, 19545728, 24432160, 39091456, 48864320, 97728640, 195457280]

約数ペア:

[(1, 195457280), (2, 97728640), (4, 48864320), (5, 39091456), (8, 24432160), (10, 19545728), (16, 12216080), (20, 9772864), (32, 6108040), (40, 4886432), (64, 3054020), (80, 2443216), (128, 1527010), (160, 1221608), (256, 763505), (311, 628480), (320, 610804), (491, 398080), (622, 314240), (640, 305402), (982, 199040), (1244, 157120), (1280, 152701), (1555, 125696), (1964, 99520), (2455, 79616), (2488, 78560), (3110, 62848), (3928, 49760), (4910, 39808), (4976, 39280), (6220, 31424), (7856, 24880), (9820, 19904), (9952, 19640), (12440, 15712)]