20152736720

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1531}}^1\times {\mathrm{4447}}^1$

素因数の和:6028

約数の個数: 80

約数和(自身を含む): 48163726848

約数和(自身を除く): 28010990128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 1531, 2960, 3062, 4447, 6124, 7655, 8894, 12248, 15310, 17788, 22235, 24496, 30620, 35576, 44470, 56647, 61240, 71152, 88940, 113294, 122480, 164539, 177880, 226588, 283235, 329078, 355760, 453176, 566470, 658156, 822695, 906352, 1132940, 1316312, 1645390, 2265880, 2632624, 3290780, 4531760, 6581560, 6808357, 13163120, 13616714, 27233428, 34041785, 54466856, 68083570, 108933712, 136167140, 251909209, 272334280, 503818418, 544668560, 1007636836, 1259546045, 2015273672, 2519092090, 4030547344, 5038184180, 10076368360, 20152736720]

約数ペア:

[(1, 20152736720), (2, 10076368360), (4, 5038184180), (5, 4030547344), (8, 2519092090), (10, 2015273672), (16, 1259546045), (20, 1007636836), (37, 544668560), (40, 503818418), (74, 272334280), (80, 251909209), (148, 136167140), (185, 108933712), (296, 68083570), (370, 54466856), (592, 34041785), (740, 27233428), (1480, 13616714), (1531, 13163120), (2960, 6808357), (3062, 6581560), (4447, 4531760), (6124, 3290780), (7655, 2632624), (8894, 2265880), (12248, 1645390), (15310, 1316312), (17788, 1132940), (22235, 906352), (24496, 822695), (30620, 658156), (35576, 566470), (44470, 453176), (56647, 355760), (61240, 329078), (71152, 283235), (88940, 226588), (113294, 177880), (122480, 164539)]