198400895

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{1657}}^1$

素因数の和:1991

約数の個数: 32

約数和(自身を含む): 297962496

約数和(自身を除く): 99561601

約数列:

[1, 5, 7, 11, 35, 55, 77, 311, 385, 1555, 1657, 2177, 3421, 8285, 10885, 11599, 17105, 18227, 23947, 57995, 91135, 119735, 127589, 515327, 637945, 2576635, 3607289, 5668597, 18036445, 28342985, 39680179, 198400895]

約数ペア:

[(1, 198400895), (5, 39680179), (7, 28342985), (11, 18036445), (35, 5668597), (55, 3607289), (77, 2576635), (311, 637945), (385, 515327), (1555, 127589), (1657, 119735), (2177, 91135), (3421, 57995), (8285, 23947), (10885, 18227), (11599, 17105)]