400023286

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{112303}}^1$

素因数の和:112455

約数の個数: 16

約数和(自身を含む): 650913984

約数和(自身を除く): 250890698

約数列:

[1, 2, 13, 26, 137, 274, 1781, 3562, 112303, 224606, 1459939, 2919878, 15385511, 30771022, 200011643, 400023286]

約数ペア:

[(1, 400023286), (2, 200011643), (13, 30771022), (26, 15385511), (137, 2919878), (274, 1459939), (1781, 224606), (3562, 112303)]