20709200

素因数分解:

$2^4\times 5^2\times {\mathrm{23}}^1\times {\mathrm{2251}}^1$

素因数の和:2292

約数の個数: 60

約数和(自身を含む): 51940128

約数和(自身を除く): 31230928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 80, 92, 100, 115, 184, 200, 230, 368, 400, 460, 575, 920, 1150, 1840, 2251, 2300, 4502, 4600, 9004, 9200, 11255, 18008, 22510, 36016, 45020, 51773, 56275, 90040, 103546, 112550, 180080, 207092, 225100, 258865, 414184, 450200, 517730, 828368, 900400, 1035460, 1294325, 2070920, 2588650, 4141840, 5177300, 10354600, 20709200]

約数ペア:

[(1, 20709200), (2, 10354600), (4, 5177300), (5, 4141840), (8, 2588650), (10, 2070920), (16, 1294325), (20, 1035460), (23, 900400), (25, 828368), (40, 517730), (46, 450200), (50, 414184), (80, 258865), (92, 225100), (100, 207092), (115, 180080), (184, 112550), (200, 103546), (230, 90040), (368, 56275), (400, 51773), (460, 45020), (575, 36016), (920, 22510), (1150, 18008), (1840, 11255), (2251, 9200), (2300, 9004), (4502, 4600)]