20108660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:201

約数の個数: 96

約数和(自身を含む): 50803200

約数和(自身を除く): 30694540

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 79, 89, 110, 130, 143, 158, 178, 220, 260, 286, 316, 356, 395, 445, 572, 715, 790, 869, 890, 979, 1027, 1157, 1430, 1580, 1738, 1780, 1958, 2054, 2314, 2860, 3476, 3916, 4108, 4345, 4628, 4895, 5135, 5785, 7031, 8690, 9790, 10270, 11297, 11570, 12727, 14062, 17380, 19580, 20540, 22594, 23140, 25454, 28124, 35155, 45188, 50908, 56485, 63635, 70310, 77341, 91403, 112970, 127270, 140620, 154682, 182806, 225940, 254540, 309364, 365612, 386705, 457015, 773410, 914030, 1005433, 1546820, 1828060, 2010866, 4021732, 5027165, 10054330, 20108660]

約数ペア:

[(1, 20108660), (2, 10054330), (4, 5027165), (5, 4021732), (10, 2010866), (11, 1828060), (13, 1546820), (20, 1005433), (22, 914030), (26, 773410), (44, 457015), (52, 386705), (55, 365612), (65, 309364), (79, 254540), (89, 225940), (110, 182806), (130, 154682), (143, 140620), (158, 127270), (178, 112970), (220, 91403), (260, 77341), (286, 70310), (316, 63635), (356, 56485), (395, 50908), (445, 45188), (572, 35155), (715, 28124), (790, 25454), (869, 23140), (890, 22594), (979, 20540), (1027, 19580), (1157, 17380), (1430, 14062), (1580, 12727), (1738, 11570), (1780, 11297), (1958, 10270), (2054, 9790), (2314, 8690), (2860, 7031), (3476, 5785), (3916, 5135), (4108, 4895), (4345, 4628)]