20659560660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{641203}}^1$

素因数の和:641397

約数の個数: 72

約数和(自身を含む): 63017529120

約数和(自身を除く): 42357968460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 179, 180, 358, 537, 716, 895, 1074, 1611, 1790, 2148, 2685, 3222, 3580, 5370, 6444, 8055, 10740, 16110, 32220, 641203, 1282406, 1923609, 2564812, 3206015, 3847218, 5770827, 6412030, 7694436, 9618045, 11541654, 12824060, 19236090, 23083308, 28854135, 38472180, 57708270, 114775337, 115416540, 229550674, 344326011, 459101348, 573876685, 688652022, 1032978033, 1147753370, 1377304044, 1721630055, 2065956066, 2295506740, 3443260110, 4131912132, 5164890165, 6886520220, 10329780330, 20659560660]

約数ペア:

[(1, 20659560660), (2, 10329780330), (3, 6886520220), (4, 5164890165), (5, 4131912132), (6, 3443260110), (9, 2295506740), (10, 2065956066), (12, 1721630055), (15, 1377304044), (18, 1147753370), (20, 1032978033), (30, 688652022), (36, 573876685), (45, 459101348), (60, 344326011), (90, 229550674), (179, 115416540), (180, 114775337), (358, 57708270), (537, 38472180), (716, 28854135), (895, 23083308), (1074, 19236090), (1611, 12824060), (1790, 11541654), (2148, 9618045), (2685, 7694436), (3222, 6412030), (3580, 5770827), (5370, 3847218), (6444, 3206015), (8055, 2564812), (10740, 1923609), (16110, 1282406), (32220, 641203)]