21457500

素因数分解:

$2^2\times 3^1\times 5^4\times {\mathrm{2861}}^1$

素因数の和:2888

約数の個数: 60

約数和(自身を含む): 62586216

約数和(自身を除く): 41128716

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 125, 150, 250, 300, 375, 500, 625, 750, 1250, 1500, 1875, 2500, 2861, 3750, 5722, 7500, 8583, 11444, 14305, 17166, 28610, 34332, 42915, 57220, 71525, 85830, 143050, 171660, 214575, 286100, 357625, 429150, 715250, 858300, 1072875, 1430500, 1788125, 2145750, 3576250, 4291500, 5364375, 7152500, 10728750, 21457500]

約数ペア:

[(1, 21457500), (2, 10728750), (3, 7152500), (4, 5364375), (5, 4291500), (6, 3576250), (10, 2145750), (12, 1788125), (15, 1430500), (20, 1072875), (25, 858300), (30, 715250), (50, 429150), (60, 357625), (75, 286100), (100, 214575), (125, 171660), (150, 143050), (250, 85830), (300, 71525), (375, 57220), (500, 42915), (625, 34332), (750, 28610), (1250, 17166), (1500, 14305), (1875, 11444), (2500, 8583), (2861, 7500), (3750, 5722)]