28718140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{11867}}^1$

素因数の和:11898

約数の個数: 36

約数和(自身を含む): 66294648

約数和(自身を除く): 37576508

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 11867, 23734, 47468, 59335, 118670, 130537, 237340, 261074, 522148, 652685, 1305370, 1435907, 2610740, 2871814, 5743628, 7179535, 14359070, 28718140]

約数ペア:

[(1, 28718140), (2, 14359070), (4, 7179535), (5, 5743628), (10, 2871814), (11, 2610740), (20, 1435907), (22, 1305370), (44, 652685), (55, 522148), (110, 261074), (121, 237340), (220, 130537), (242, 118670), (484, 59335), (605, 47468), (1210, 23734), (2420, 11867)]