289097720

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{56909}}^1$

素因数の和:57047

約数の個数: 32

約数和(自身を含む): 655603200

約数和(自身を除く): 366505480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 56909, 113818, 227636, 284545, 455272, 569090, 1138180, 2276360, 7227443, 14454886, 28909772, 36137215, 57819544, 72274430, 144548860, 289097720]

約数ペア:

[(1, 289097720), (2, 144548860), (4, 72274430), (5, 57819544), (8, 36137215), (10, 28909772), (20, 14454886), (40, 7227443), (127, 2276360), (254, 1138180), (508, 569090), (635, 455272), (1016, 284545), (1270, 227636), (2540, 113818), (5080, 56909)]