397344860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1806113}}^1$

素因数の和:1806133

約数の個数: 24

約数和(自身を含む): 910281456

約数和(自身を除く): 512936596

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1806113, 3612226, 7224452, 9030565, 18061130, 19867243, 36122260, 39734486, 79468972, 99336215, 198672430, 397344860]

約数ペア:

[(1, 397344860), (2, 198672430), (4, 99336215), (5, 79468972), (10, 39734486), (11, 36122260), (20, 19867243), (22, 18061130), (44, 9030565), (55, 7224452), (110, 3612226), (220, 1806113)]