20171955980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{8335519}}^1$

素因数の和:8335550

約数の個数: 36

約数和(自身を含む): 46562214720

約数和(自身を除く): 26390258740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 8335519, 16671038, 33342076, 41677595, 83355190, 91690709, 166710380, 183381418, 366762836, 458453545, 916907090, 1008597799, 1833814180, 2017195598, 4034391196, 5042988995, 10085977990, 20171955980]

約数ペア:

[(1, 20171955980), (2, 10085977990), (4, 5042988995), (5, 4034391196), (10, 2017195598), (11, 1833814180), (20, 1008597799), (22, 916907090), (44, 458453545), (55, 366762836), (110, 183381418), (121, 166710380), (220, 91690709), (242, 83355190), (484, 41677595), (605, 33342076), (1210, 16671038), (2420, 8335519)]