40681328

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{277}}^1$

素因数の和:489

約数の個数: 40

約数和(自身を含む): 80871312

約数和(自身を除く): 40189984

約数列:

[1, 2, 4, 8, 16, 67, 134, 137, 268, 274, 277, 536, 548, 554, 1072, 1096, 1108, 2192, 2216, 4432, 9179, 18358, 18559, 36716, 37118, 37949, 73432, 74236, 75898, 146864, 148472, 151796, 296944, 303592, 607184, 2542583, 5085166, 10170332, 20340664, 40681328]

約数ペア:

[(1, 40681328), (2, 20340664), (4, 10170332), (8, 5085166), (16, 2542583), (67, 607184), (134, 303592), (137, 296944), (268, 151796), (274, 148472), (277, 146864), (536, 75898), (548, 74236), (554, 73432), (1072, 37949), (1096, 37118), (1108, 36716), (2192, 18559), (2216, 18358), (4432, 9179)]