400640656

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1926157}}^1$

素因数の和:1926178

約数の個数: 20

約数和(自身を含む): 835952572

約数和(自身を除く): 435311916

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1926157, 3852314, 7704628, 15409256, 25040041, 30818512, 50080082, 100160164, 200320328, 400640656]

約数ペア:

[(1, 400640656), (2, 200320328), (4, 100160164), (8, 50080082), (13, 30818512), (16, 25040041), (26, 15409256), (52, 7704628), (104, 3852314), (208, 1926157)]