20797834510

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{653}}^1\times {\mathrm{4357}}^1$

素因数の和:5077

約数の個数: 64

約数和(自身を含む): 40631481792

約数和(自身を除く): 19833647282

約数列:

[1, 2, 5, 10, 17, 34, 43, 85, 86, 170, 215, 430, 653, 731, 1306, 1462, 3265, 3655, 4357, 6530, 7310, 8714, 11101, 21785, 22202, 28079, 43570, 55505, 56158, 74069, 111010, 140395, 148138, 187351, 280790, 370345, 374702, 477343, 740690, 936755, 954686, 1873510, 2386715, 2845121, 3184967, 4773430, 5690242, 6369934, 14225605, 15924835, 28451210, 31849670, 48367057, 96734114, 122340203, 241835285, 244680406, 483670570, 611701015, 1223402030, 2079783451, 4159566902, 10398917255, 20797834510]

約数ペア:

[(1, 20797834510), (2, 10398917255), (5, 4159566902), (10, 2079783451), (17, 1223402030), (34, 611701015), (43, 483670570), (85, 244680406), (86, 241835285), (170, 122340203), (215, 96734114), (430, 48367057), (653, 31849670), (731, 28451210), (1306, 15924835), (1462, 14225605), (3265, 6369934), (3655, 5690242), (4357, 4773430), (6530, 3184967), (7310, 2845121), (8714, 2386715), (11101, 1873510), (21785, 954686), (22202, 936755), (28079, 740690), (43570, 477343), (55505, 374702), (56158, 370345), (74069, 280790), (111010, 187351), (140395, 148138)]