20121609802

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{280879}}^1$

素因数の和:280955

約数の個数: 48

約数和(自身を含む): 38040140160

約数和(自身を除く): 17918530358

約数列:

[1, 2, 7, 14, 17, 34, 43, 49, 86, 98, 119, 238, 301, 602, 731, 833, 1462, 1666, 2107, 4214, 5117, 10234, 35819, 71638, 280879, 561758, 1966153, 3932306, 4774943, 9549886, 12077797, 13763071, 24155594, 27526142, 33424601, 66849202, 84544579, 169089158, 205322549, 233972207, 410645098, 467944414, 591812053, 1183624106, 1437257843, 2874515686, 10060804901, 20121609802]

約数ペア:

[(1, 20121609802), (2, 10060804901), (7, 2874515686), (14, 1437257843), (17, 1183624106), (34, 591812053), (43, 467944414), (49, 410645098), (86, 233972207), (98, 205322549), (119, 169089158), (238, 84544579), (301, 66849202), (602, 33424601), (731, 27526142), (833, 24155594), (1462, 13763071), (1666, 12077797), (2107, 9549886), (4214, 4774943), (5117, 3932306), (10234, 1966153), (35819, 561758), (71638, 280879)]