27805880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{397}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 67055040

約数和(自身を除く): 39249160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 103, 136, 170, 206, 340, 397, 412, 515, 680, 794, 824, 1030, 1588, 1751, 1985, 2060, 3176, 3502, 3970, 4120, 6749, 7004, 7940, 8755, 13498, 14008, 15880, 17510, 26996, 33745, 35020, 40891, 53992, 67490, 70040, 81782, 134980, 163564, 204455, 269960, 327128, 408910, 695147, 817820, 1390294, 1635640, 2780588, 3475735, 5561176, 6951470, 13902940, 27805880]

約数ペア:

[(1, 27805880), (2, 13902940), (4, 6951470), (5, 5561176), (8, 3475735), (10, 2780588), (17, 1635640), (20, 1390294), (34, 817820), (40, 695147), (68, 408910), (85, 327128), (103, 269960), (136, 204455), (170, 163564), (206, 134980), (340, 81782), (397, 70040), (412, 67490), (515, 53992), (680, 40891), (794, 35020), (824, 33745), (1030, 26996), (1588, 17510), (1751, 15880), (1985, 14008), (2060, 13498), (3176, 8755), (3502, 7940), (3970, 7004), (4120, 6749)]