28786264

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:260

約数の個数: 64

約数和(自身を含む): 61316640

約数和(自身を除く): 32530376

約数列:

[1, 2, 4, 8, 13, 26, 41, 43, 52, 82, 86, 104, 157, 164, 172, 314, 328, 344, 533, 559, 628, 1066, 1118, 1256, 1763, 2041, 2132, 2236, 3526, 4082, 4264, 4472, 6437, 6751, 7052, 8164, 12874, 13502, 14104, 16328, 22919, 25748, 27004, 45838, 51496, 54008, 83681, 87763, 91676, 167362, 175526, 183352, 276791, 334724, 351052, 553582, 669448, 702104, 1107164, 2214328, 3598283, 7196566, 14393132, 28786264]

約数ペア:

[(1, 28786264), (2, 14393132), (4, 7196566), (8, 3598283), (13, 2214328), (26, 1107164), (41, 702104), (43, 669448), (52, 553582), (82, 351052), (86, 334724), (104, 276791), (157, 183352), (164, 175526), (172, 167362), (314, 91676), (328, 87763), (344, 83681), (533, 54008), (559, 51496), (628, 45838), (1066, 27004), (1118, 25748), (1256, 22919), (1763, 16328), (2041, 14104), (2132, 13502), (2236, 12874), (3526, 8164), (4082, 7052), (4264, 6751), (4472, 6437)]