20516808

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3461}}^1$

素因数の和:3502

約数の個数: 64

約数和(自身を含む): 58161600

約数和(自身を除く): 37644792

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 38, 39, 52, 57, 76, 78, 104, 114, 152, 156, 228, 247, 312, 456, 494, 741, 988, 1482, 1976, 2964, 3461, 5928, 6922, 10383, 13844, 20766, 27688, 41532, 44993, 65759, 83064, 89986, 131518, 134979, 179972, 197277, 263036, 269958, 359944, 394554, 526072, 539916, 789108, 854867, 1079832, 1578216, 1709734, 2564601, 3419468, 5129202, 6838936, 10258404, 20516808]

約数ペア:

[(1, 20516808), (2, 10258404), (3, 6838936), (4, 5129202), (6, 3419468), (8, 2564601), (12, 1709734), (13, 1578216), (19, 1079832), (24, 854867), (26, 789108), (38, 539916), (39, 526072), (52, 394554), (57, 359944), (76, 269958), (78, 263036), (104, 197277), (114, 179972), (152, 134979), (156, 131518), (228, 89986), (247, 83064), (312, 65759), (456, 44993), (494, 41532), (741, 27688), (988, 20766), (1482, 13844), (1976, 10383), (2964, 6922), (3461, 5928)]