219399140

素因数分解:

$2^2\times 5^1\times {\mathrm{1303}}^1\times {\mathrm{8419}}^1$

素因数の和:9731

約数の個数: 24

約数和(自身を含む): 461146560

約数和(自身を除く): 241747420

約数列:

[1, 2, 4, 5, 10, 20, 1303, 2606, 5212, 6515, 8419, 13030, 16838, 26060, 33676, 42095, 84190, 168380, 10969957, 21939914, 43879828, 54849785, 109699570, 219399140]

約数ペア:

[(1, 219399140), (2, 109699570), (4, 54849785), (5, 43879828), (10, 21939914), (20, 10969957), (1303, 168380), (2606, 84190), (5212, 42095), (6515, 33676), (8419, 26060), (13030, 16838)]