261567262

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^2$

素因数の和:289

約数の個数: 48

約数和(自身を含む): 461433600

約数和(自身を除く): 199866338

約数列:

[1, 2, 11, 19, 22, 38, 79, 89, 158, 178, 209, 418, 869, 979, 1501, 1691, 1738, 1958, 3002, 3382, 7031, 7921, 14062, 15842, 16511, 18601, 33022, 37202, 77341, 87131, 133589, 150499, 154682, 174262, 267178, 300998, 625759, 1251518, 1469479, 1655489, 2938958, 3310978, 6883349, 11889421, 13766698, 23778842, 130783631, 261567262]

約数ペア:

[(1, 261567262), (2, 130783631), (11, 23778842), (19, 13766698), (22, 11889421), (38, 6883349), (79, 3310978), (89, 2938958), (158, 1655489), (178, 1469479), (209, 1251518), (418, 625759), (869, 300998), (979, 267178), (1501, 174262), (1691, 154682), (1738, 150499), (1958, 133589), (3002, 87131), (3382, 77341), (7031, 37202), (7921, 33022), (14062, 18601), (15842, 16511)]