197829760

素因数分解:

$2^7\times 5^1\times {\mathrm{309109}}^1$

素因数の和:309128

約数の個数: 32

約数和(自身を含む): 472938300

約数和(自身を除く): 275108540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 309109, 618218, 1236436, 1545545, 2472872, 3091090, 4945744, 6182180, 9891488, 12364360, 19782976, 24728720, 39565952, 49457440, 98914880, 197829760]

約数ペア:

[(1, 197829760), (2, 98914880), (4, 49457440), (5, 39565952), (8, 24728720), (10, 19782976), (16, 12364360), (20, 9891488), (32, 6182180), (40, 4945744), (64, 3091090), (80, 2472872), (128, 1545545), (160, 1236436), (320, 618218), (640, 309109)]