20805220810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{29383}}^1$

素因数の和:29599

約数の個数: 64

約数和(自身を含む): 42118320384

約数和(自身を除く): 21313099574

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 157, 205, 314, 410, 451, 785, 902, 1570, 1727, 2255, 3454, 4510, 6437, 8635, 12874, 17270, 29383, 32185, 58766, 64370, 70807, 141614, 146915, 293830, 323213, 354035, 646426, 708070, 1204703, 1616065, 2409406, 3232130, 4613131, 6023515, 9226262, 12047030, 13251733, 23065655, 26503466, 46131310, 50744441, 66258665, 101488882, 132517330, 189138371, 253722205, 378276742, 507444410, 945691855, 1891383710, 2080522081, 4161044162, 10402610405, 20805220810]

約数ペア:

[(1, 20805220810), (2, 10402610405), (5, 4161044162), (10, 2080522081), (11, 1891383710), (22, 945691855), (41, 507444410), (55, 378276742), (82, 253722205), (110, 189138371), (157, 132517330), (205, 101488882), (314, 66258665), (410, 50744441), (451, 46131310), (785, 26503466), (902, 23065655), (1570, 13251733), (1727, 12047030), (2255, 9226262), (3454, 6023515), (4510, 4613131), (6437, 3232130), (8635, 2409406), (12874, 1616065), (17270, 1204703), (29383, 708070), (32185, 646426), (58766, 354035), (64370, 323213), (70807, 293830), (141614, 146915)]