199972045

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{1553}}^1$

素因数の和:1861

約数の個数: 32

約数和(自身を含む): 296577792

約数和(自身を除く): 96605747

約数列:

[1, 5, 7, 13, 35, 65, 91, 283, 455, 1415, 1553, 1981, 3679, 7765, 9905, 10871, 18395, 20189, 25753, 54355, 100945, 128765, 141323, 439499, 706615, 2197495, 3076493, 5713487, 15382465, 28567435, 39994409, 199972045]

約数ペア:

[(1, 199972045), (5, 39994409), (7, 28567435), (13, 15382465), (35, 5713487), (65, 3076493), (91, 2197495), (283, 706615), (455, 439499), (1415, 141323), (1553, 128765), (1981, 100945), (3679, 54355), (7765, 25753), (9905, 20189), (10871, 18395)]