63964000

素因数分解:

$2^5\times 5^3\times {\mathrm{15991}}^1$

素因数の和:16016

約数の個数: 48

約数和(自身を含む): 157169376

約数和(自身を除く): 93205376

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, 15991, 31982, 63964, 79955, 127928, 159910, 255856, 319820, 399775, 511712, 639640, 799550, 1279280, 1599100, 1998875, 2558560, 3198200, 3997750, 6396400, 7995500, 12792800, 15991000, 31982000, 63964000]

約数ペア:

[(1, 63964000), (2, 31982000), (4, 15991000), (5, 12792800), (8, 7995500), (10, 6396400), (16, 3997750), (20, 3198200), (25, 2558560), (32, 1998875), (40, 1599100), (50, 1279280), (80, 799550), (100, 639640), (125, 511712), (160, 399775), (200, 319820), (250, 255856), (400, 159910), (500, 127928), (800, 79955), (1000, 63964), (2000, 31982), (4000, 15991)]