20341505180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{172649}}^1$

素因数の和:172838

約数の個数: 48

約数和(自身を含む): 44029893600

約数和(自身を除く): 23688388420

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 137, 172, 215, 274, 430, 548, 685, 860, 1370, 2740, 5891, 11782, 23564, 29455, 58910, 117820, 172649, 345298, 690596, 863245, 1726490, 3452980, 7423907, 14847814, 23652913, 29695628, 37119535, 47305826, 74239070, 94611652, 118264565, 148478140, 236529130, 473058260, 1017075259, 2034150518, 4068301036, 5085376295, 10170752590, 20341505180]

約数ペア:

[(1, 20341505180), (2, 10170752590), (4, 5085376295), (5, 4068301036), (10, 2034150518), (20, 1017075259), (43, 473058260), (86, 236529130), (137, 148478140), (172, 118264565), (215, 94611652), (274, 74239070), (430, 47305826), (548, 37119535), (685, 29695628), (860, 23652913), (1370, 14847814), (2740, 7423907), (5891, 3452980), (11782, 1726490), (23564, 863245), (29455, 690596), (58910, 345298), (117820, 172649)]