65444000

素因数分解:

$2^5\times 5^3\times {\mathrm{16361}}^1$

素因数の和:16386

約数の個数: 48

約数和(自身を含む): 160805736

約数和(自身を除く): 95361736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 16361, 32722, 65444, 81805, 130888, 163610, 261776, 327220, 409025, 523552, 654440, 818050, 1308880, 1636100, 2045125, 2617760, 3272200, 4090250, 6544400, 8180500, 13088800, 16361000, 32722000, 65444000]

約数ペア:

[(1, 65444000), (2, 32722000), (4, 16361000), (5, 13088800), (8, 8180500), (10, 6544400), (16, 4090250), (20, 3272200), (25, 2617760), (32, 2045125), (40, 1636100), (50, 1308880), (80, 818050), (100, 654440), (125, 523552), (160, 409025), (200, 327220), (250, 261776), (400, 163610), (500, 130888), (800, 81805), (1000, 65444), (2000, 32722), (4000, 16361)]