31212880000

素因数分解:

$2^7\times 5^4\times {\mathrm{390161}}^1$

素因数の和:390195

約数の個数: 80

約数和(自身を含む): 77702713110

約数和(自身を除く): 46489833110

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 625, 640, 800, 1000, 1250, 1600, 2000, 2500, 3200, 4000, 5000, 8000, 10000, 16000, 20000, 40000, 80000, 390161, 780322, 1560644, 1950805, 3121288, 3901610, 6242576, 7803220, 9754025, 12485152, 15606440, 19508050, 24970304, 31212880, 39016100, 48770125, 49940608, 62425760, 78032200, 97540250, 124851520, 156064400, 195080500, 243850625, 249703040, 312128800, 390161000, 487701250, 624257600, 780322000, 975402500, 1248515200, 1560644000, 1950805000, 3121288000, 3901610000, 6242576000, 7803220000, 15606440000, 31212880000]

約数ペア:

[(1, 31212880000), (2, 15606440000), (4, 7803220000), (5, 6242576000), (8, 3901610000), (10, 3121288000), (16, 1950805000), (20, 1560644000), (25, 1248515200), (32, 975402500), (40, 780322000), (50, 624257600), (64, 487701250), (80, 390161000), (100, 312128800), (125, 249703040), (128, 243850625), (160, 195080500), (200, 156064400), (250, 124851520), (320, 97540250), (400, 78032200), (500, 62425760), (625, 49940608), (640, 48770125), (800, 39016100), (1000, 31212880), (1250, 24970304), (1600, 19508050), (2000, 15606440), (2500, 12485152), (3200, 9754025), (4000, 7803220), (5000, 6242576), (8000, 3901610), (10000, 3121288), (16000, 1950805), (20000, 1560644), (40000, 780322), (80000, 390161)]