258604720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4139}}^1$

素因数の和:4234

約数の個数: 80

約数和(自身を含む): 665314560

約数和(自身を除く): 406709840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 440, 568, 710, 781, 880, 1136, 1420, 1562, 2840, 3124, 3905, 4139, 5680, 6248, 7810, 8278, 12496, 15620, 16556, 20695, 31240, 33112, 41390, 45529, 62480, 66224, 82780, 91058, 165560, 182116, 227645, 293869, 331120, 364232, 455290, 587738, 728464, 910580, 1175476, 1469345, 1821160, 2350952, 2938690, 3232559, 3642320, 4701904, 5877380, 6465118, 11754760, 12930236, 16162795, 23509520, 25860472, 32325590, 51720944, 64651180, 129302360, 258604720]

約数ペア:

[(1, 258604720), (2, 129302360), (4, 64651180), (5, 51720944), (8, 32325590), (10, 25860472), (11, 23509520), (16, 16162795), (20, 12930236), (22, 11754760), (40, 6465118), (44, 5877380), (55, 4701904), (71, 3642320), (80, 3232559), (88, 2938690), (110, 2350952), (142, 1821160), (176, 1469345), (220, 1175476), (284, 910580), (355, 728464), (440, 587738), (568, 455290), (710, 364232), (781, 331120), (880, 293869), (1136, 227645), (1420, 182116), (1562, 165560), (2840, 91058), (3124, 82780), (3905, 66224), (4139, 62480), (5680, 45529), (6248, 41390), (7810, 33112), (8278, 31240), (12496, 20695), (15620, 16556)]