378401140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{111953}}^1$

素因数の和:111988

約数の個数: 36

約数和(自身を含む): 860478444

約数和(自身を除く): 482077304

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 111953, 223906, 447812, 559765, 1119530, 1455389, 2239060, 2910778, 5821556, 7276945, 14553890, 18920057, 29107780, 37840114, 75680228, 94600285, 189200570, 378401140]

約数ペア:

[(1, 378401140), (2, 189200570), (4, 94600285), (5, 75680228), (10, 37840114), (13, 29107780), (20, 18920057), (26, 14553890), (52, 7276945), (65, 5821556), (130, 2910778), (169, 2239060), (260, 1455389), (338, 1119530), (676, 559765), (845, 447812), (1690, 223906), (3380, 111953)]