204490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2$

素因数の和:55

約数の個数: 36

約数和(自身を含む): 438102

約数和(自身を除く): 233612

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 121, 130, 143, 169, 242, 286, 338, 605, 715, 845, 1210, 1430, 1573, 1690, 1859, 3146, 3718, 7865, 9295, 15730, 18590, 20449, 40898, 102245, 204490]

約数ペア:

[(1, 204490), (2, 102245), (5, 40898), (10, 20449), (11, 18590), (13, 15730), (22, 9295), (26, 7865), (55, 3718), (65, 3146), (110, 1859), (121, 1690), (130, 1573), (143, 1430), (169, 1210), (242, 845), (286, 715), (338, 605)]