18727900

素因数分解:

$2^2\times 5^2\times {\mathrm{137}}^1\times {\mathrm{1367}}^1$

素因数の和:1518

約数の個数: 36

約数和(自身を含む): 40966128

約数和(自身を除く): 22238228

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 137, 274, 548, 685, 1367, 1370, 2734, 2740, 3425, 5468, 6835, 6850, 13670, 13700, 27340, 34175, 68350, 136700, 187279, 374558, 749116, 936395, 1872790, 3745580, 4681975, 9363950, 18727900]

約数ペア:

[(1, 18727900), (2, 9363950), (4, 4681975), (5, 3745580), (10, 1872790), (20, 936395), (25, 749116), (50, 374558), (100, 187279), (137, 136700), (274, 68350), (548, 34175), (685, 27340), (1367, 13700), (1370, 13670), (2734, 6850), (2740, 6835), (3425, 5468)]