218366728

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{20477}}^1$

素因数の和:20557

約数の個数: 32

約数和(自身を含む): 432495360

約数和(自身を除く): 214128632

約数列:

[1, 2, 4, 8, 31, 43, 62, 86, 124, 172, 248, 344, 1333, 2666, 5332, 10664, 20477, 40954, 81908, 163816, 634787, 880511, 1269574, 1761022, 2539148, 3522044, 5078296, 7044088, 27295841, 54591682, 109183364, 218366728]

約数ペア:

[(1, 218366728), (2, 109183364), (4, 54591682), (8, 27295841), (31, 7044088), (43, 5078296), (62, 3522044), (86, 2539148), (124, 1761022), (172, 1269574), (248, 880511), (344, 634787), (1333, 163816), (2666, 81908), (5332, 40954), (10664, 20477)]