28204920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{78347}}^1$

素因数の和:78364

約数の個数: 48

約数和(自身を含む): 91667160

約数和(自身を除く): 63462240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 78347, 156694, 235041, 313388, 391735, 470082, 626776, 705123, 783470, 940164, 1175205, 1410246, 1566940, 1880328, 2350410, 2820492, 3133880, 3525615, 4700820, 5640984, 7051230, 9401640, 14102460, 28204920]

約数ペア:

[(1, 28204920), (2, 14102460), (3, 9401640), (4, 7051230), (5, 5640984), (6, 4700820), (8, 3525615), (9, 3133880), (10, 2820492), (12, 2350410), (15, 1880328), (18, 1566940), (20, 1410246), (24, 1175205), (30, 940164), (36, 783470), (40, 705123), (45, 626776), (60, 470082), (72, 391735), (90, 313388), (120, 235041), (180, 156694), (360, 78347)]