78646828

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2069}}^1$

素因数の和:2146

約数の個数: 48

約数和(自身を含む): 160665120

約数和(自身を除く): 82018292

約数列:

[1, 2, 4, 13, 17, 26, 34, 43, 52, 68, 86, 172, 221, 442, 559, 731, 884, 1118, 1462, 2069, 2236, 2924, 4138, 8276, 9503, 19006, 26897, 35173, 38012, 53794, 70346, 88967, 107588, 140692, 177934, 355868, 457249, 914498, 1156571, 1512439, 1828996, 2313142, 3024878, 4626284, 6049756, 19661707, 39323414, 78646828]

約数ペア:

[(1, 78646828), (2, 39323414), (4, 19661707), (13, 6049756), (17, 4626284), (26, 3024878), (34, 2313142), (43, 1828996), (52, 1512439), (68, 1156571), (86, 914498), (172, 457249), (221, 355868), (442, 177934), (559, 140692), (731, 107588), (884, 88967), (1118, 70346), (1462, 53794), (2069, 38012), (2236, 35173), (2924, 26897), (4138, 19006), (8276, 9503)]