17223580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{991}}^1$

素因数の和:1090

約数の個数: 48

約数和(自身を含む): 39997440

約数和(自身を除く): 22773860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 991, 1580, 1738, 1982, 3476, 3964, 4345, 4955, 8690, 9910, 10901, 17380, 19820, 21802, 43604, 54505, 78289, 109010, 156578, 218020, 313156, 391445, 782890, 861179, 1565780, 1722358, 3444716, 4305895, 8611790, 17223580]

約数ペア:

[(1, 17223580), (2, 8611790), (4, 4305895), (5, 3444716), (10, 1722358), (11, 1565780), (20, 861179), (22, 782890), (44, 391445), (55, 313156), (79, 218020), (110, 156578), (158, 109010), (220, 78289), (316, 54505), (395, 43604), (790, 21802), (869, 19820), (991, 17380), (1580, 10901), (1738, 9910), (1982, 8690), (3476, 4955), (3964, 4345)]