205771840

素因数分解:

$2^6\times 5^1\times {\mathrm{613}}^1\times {\mathrm{1049}}^1$

素因数の和:1679

約数の個数: 56

約数和(自身を含む): 491261400

約数和(自身を除く): 285489560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 613, 1049, 1226, 2098, 2452, 3065, 4196, 4904, 5245, 6130, 8392, 9808, 10490, 12260, 16784, 19616, 20980, 24520, 33568, 39232, 41960, 49040, 67136, 83920, 98080, 167840, 196160, 335680, 643037, 1286074, 2572148, 3215185, 5144296, 6430370, 10288592, 12860740, 20577184, 25721480, 41154368, 51442960, 102885920, 205771840]

約数ペア:

[(1, 205771840), (2, 102885920), (4, 51442960), (5, 41154368), (8, 25721480), (10, 20577184), (16, 12860740), (20, 10288592), (32, 6430370), (40, 5144296), (64, 3215185), (80, 2572148), (160, 1286074), (320, 643037), (613, 335680), (1049, 196160), (1226, 167840), (2098, 98080), (2452, 83920), (3065, 67136), (4196, 49040), (4904, 41960), (5245, 39232), (6130, 33568), (8392, 24520), (9808, 20980), (10490, 19616), (12260, 16784)]