128314640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{94349}}^1$

素因数の和:94379

約数の個数: 40

約数和(自身を含む): 315883800

約数和(自身を除く): 187569160

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 94349, 188698, 377396, 471745, 754792, 943490, 1509584, 1603933, 1886980, 3207866, 3773960, 6415732, 7547920, 8019665, 12831464, 16039330, 25662928, 32078660, 64157320, 128314640]

約数ペア:

[(1, 128314640), (2, 64157320), (4, 32078660), (5, 25662928), (8, 16039330), (10, 12831464), (16, 8019665), (17, 7547920), (20, 6415732), (34, 3773960), (40, 3207866), (68, 1886980), (80, 1603933), (85, 1509584), (136, 943490), (170, 754792), (272, 471745), (340, 377396), (680, 188698), (1360, 94349)]