20150486840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{168991}}^1$

素因数の和:169284

約数の個数: 64

約数和(自身を含む): 49643089920

約数和(自身を除く): 29492603080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 271, 440, 542, 1084, 1355, 2168, 2710, 2981, 5420, 5962, 10840, 11924, 14905, 23848, 29810, 59620, 119240, 168991, 337982, 675964, 844955, 1351928, 1689910, 1858901, 3379820, 3717802, 6759640, 7435604, 9294505, 14871208, 18589010, 37178020, 45796561, 74356040, 91593122, 183186244, 228982805, 366372488, 457965610, 503762171, 915931220, 1007524342, 1831862440, 2015048684, 2518810855, 4030097368, 5037621710, 10075243420, 20150486840]

約数ペア:

[(1, 20150486840), (2, 10075243420), (4, 5037621710), (5, 4030097368), (8, 2518810855), (10, 2015048684), (11, 1831862440), (20, 1007524342), (22, 915931220), (40, 503762171), (44, 457965610), (55, 366372488), (88, 228982805), (110, 183186244), (220, 91593122), (271, 74356040), (440, 45796561), (542, 37178020), (1084, 18589010), (1355, 14871208), (2168, 9294505), (2710, 7435604), (2981, 6759640), (5420, 3717802), (5962, 3379820), (10840, 1858901), (11924, 1689910), (14905, 1351928), (23848, 844955), (29810, 675964), (59620, 337982), (119240, 168991)]