20993060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2579}}^1$

素因数の和:2636

約数の個数: 48

約数和(自身を含む): 49412160

約数和(自身を除く): 28419100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 2579, 4070, 5158, 8140, 10316, 12895, 25790, 28369, 51580, 56738, 95423, 113476, 141845, 190846, 283690, 381692, 477115, 567380, 954230, 1049653, 1908460, 2099306, 4198612, 5248265, 10496530, 20993060]

約数ペア:

[(1, 20993060), (2, 10496530), (4, 5248265), (5, 4198612), (10, 2099306), (11, 1908460), (20, 1049653), (22, 954230), (37, 567380), (44, 477115), (55, 381692), (74, 283690), (110, 190846), (148, 141845), (185, 113476), (220, 95423), (370, 56738), (407, 51580), (740, 28369), (814, 25790), (1628, 12895), (2035, 10316), (2579, 8140), (4070, 5158)]