25223440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{28663}}^1$

素因数の和:28687

約数の個数: 40

約数和(自身を含む): 63978048

約数和(自身を除く): 38754608

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 28663, 57326, 114652, 143315, 229304, 286630, 315293, 458608, 573260, 630586, 1146520, 1261172, 1576465, 2293040, 2522344, 3152930, 5044688, 6305860, 12611720, 25223440]

約数ペア:

[(1, 25223440), (2, 12611720), (4, 6305860), (5, 5044688), (8, 3152930), (10, 2522344), (11, 2293040), (16, 1576465), (20, 1261172), (22, 1146520), (40, 630586), (44, 573260), (55, 458608), (80, 315293), (88, 286630), (110, 229304), (176, 143315), (220, 114652), (440, 57326), (880, 28663)]