121291280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137831}}^1$

素因数の和:137855

約数の個数: 40

約数和(自身を含む): 307641024

約数和(自身を除く): 186349744

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 137831, 275662, 551324, 689155, 1102648, 1378310, 1516141, 2205296, 2756620, 3032282, 5513240, 6064564, 7580705, 11026480, 12129128, 15161410, 24258256, 30322820, 60645640, 121291280]

約数ペア:

[(1, 121291280), (2, 60645640), (4, 30322820), (5, 24258256), (8, 15161410), (10, 12129128), (11, 11026480), (16, 7580705), (20, 6064564), (22, 5513240), (40, 3032282), (44, 2756620), (55, 2205296), (80, 1516141), (88, 1378310), (110, 1102648), (176, 689155), (220, 551324), (440, 275662), (880, 137831)]