664895972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{2467}}^1$

素因数の和:2628

約数の個数: 48

約数和(自身を含む): 1288651392

約数和(自身を除く): 623755420

約数列:

[1, 2, 4, 13, 26, 52, 71, 73, 142, 146, 284, 292, 923, 949, 1846, 1898, 2467, 3692, 3796, 4934, 5183, 9868, 10366, 20732, 32071, 64142, 67379, 128284, 134758, 175157, 180091, 269516, 350314, 360182, 700628, 720364, 2277041, 2341183, 4554082, 4682366, 9108164, 9364732, 12786461, 25572922, 51145844, 166223993, 332447986, 664895972]

約数ペア:

[(1, 664895972), (2, 332447986), (4, 166223993), (13, 51145844), (26, 25572922), (52, 12786461), (71, 9364732), (73, 9108164), (142, 4682366), (146, 4554082), (284, 2341183), (292, 2277041), (923, 720364), (949, 700628), (1846, 360182), (1898, 350314), (2467, 269516), (3692, 180091), (3796, 175157), (4934, 134758), (5183, 128284), (9868, 67379), (10366, 64142), (20732, 32071)]