266947120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{439}}^1\times {\mathrm{691}}^1$

素因数の和:1154

約数の個数: 80

約数和(自身を含む): 679599360

約数和(自身を除く): 412652240

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 439, 440, 691, 878, 880, 1382, 1756, 2195, 2764, 3455, 3512, 4390, 4829, 5528, 6910, 7024, 7601, 8780, 9658, 11056, 13820, 15202, 17560, 19316, 24145, 27640, 30404, 35120, 38005, 38632, 48290, 55280, 60808, 76010, 77264, 96580, 121616, 152020, 193160, 303349, 304040, 386320, 606698, 608080, 1213396, 1516745, 2426792, 3033490, 3336839, 4853584, 6066980, 6673678, 12133960, 13347356, 16684195, 24267920, 26694712, 33368390, 53389424, 66736780, 133473560, 266947120]

約数ペア:

[(1, 266947120), (2, 133473560), (4, 66736780), (5, 53389424), (8, 33368390), (10, 26694712), (11, 24267920), (16, 16684195), (20, 13347356), (22, 12133960), (40, 6673678), (44, 6066980), (55, 4853584), (80, 3336839), (88, 3033490), (110, 2426792), (176, 1516745), (220, 1213396), (439, 608080), (440, 606698), (691, 386320), (878, 304040), (880, 303349), (1382, 193160), (1756, 152020), (2195, 121616), (2764, 96580), (3455, 77264), (3512, 76010), (4390, 60808), (4829, 55280), (5528, 48290), (6910, 38632), (7024, 38005), (7601, 35120), (8780, 30404), (9658, 27640), (11056, 24145), (13820, 19316), (15202, 17560)]