20177066440

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{461}}^1\times {\mathrm{29573}}^1$

素因数の和:30082

約数の個数: 64

約数和(自身を含む): 46728102960

約数和(自身を除く): 26551036520

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 461, 740, 922, 1480, 1844, 2305, 3688, 4610, 9220, 17057, 18440, 29573, 34114, 59146, 68228, 85285, 118292, 136456, 147865, 170570, 236584, 295730, 341140, 591460, 682280, 1094201, 1182920, 2188402, 4376804, 5471005, 8753608, 10942010, 13633153, 21884020, 27266306, 43768040, 54532612, 68165765, 109065224, 136331530, 272663060, 504426661, 545326120, 1008853322, 2017706644, 2522133305, 4035413288, 5044266610, 10088533220, 20177066440]

約数ペア:

[(1, 20177066440), (2, 10088533220), (4, 5044266610), (5, 4035413288), (8, 2522133305), (10, 2017706644), (20, 1008853322), (37, 545326120), (40, 504426661), (74, 272663060), (148, 136331530), (185, 109065224), (296, 68165765), (370, 54532612), (461, 43768040), (740, 27266306), (922, 21884020), (1480, 13633153), (1844, 10942010), (2305, 8753608), (3688, 5471005), (4610, 4376804), (9220, 2188402), (17057, 1182920), (18440, 1094201), (29573, 682280), (34114, 591460), (59146, 341140), (68228, 295730), (85285, 236584), (118292, 170570), (136456, 147865)]