263745520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{106349}}^1$

素因数の和:106393

約数の個数: 40

約数和(自身を含む): 632995200

約数和(自身を除く): 369249680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 106349, 212698, 425396, 531745, 850792, 1063490, 1701584, 2126980, 3296819, 4253960, 6593638, 8507920, 13187276, 16484095, 26374552, 32968190, 52749104, 65936380, 131872760, 263745520]

約数ペア:

[(1, 263745520), (2, 131872760), (4, 65936380), (5, 52749104), (8, 32968190), (10, 26374552), (16, 16484095), (20, 13187276), (31, 8507920), (40, 6593638), (62, 4253960), (80, 3296819), (124, 2126980), (155, 1701584), (248, 1063490), (310, 850792), (496, 531745), (620, 425396), (1240, 212698), (2480, 106349)]