20519928

素因数分解:

$2^3\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1993}}^1$

素因数の和:2029

約数の個数: 96

約数和(自身を含む): 65323440

約数和(自身を除く): 44803512

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 13, 18, 22, 24, 26, 33, 36, 39, 44, 52, 66, 72, 78, 88, 99, 104, 117, 132, 143, 156, 198, 234, 264, 286, 312, 396, 429, 468, 572, 792, 858, 936, 1144, 1287, 1716, 1993, 2574, 3432, 3986, 5148, 5979, 7972, 10296, 11958, 15944, 17937, 21923, 23916, 25909, 35874, 43846, 47832, 51818, 65769, 71748, 77727, 87692, 103636, 131538, 143496, 155454, 175384, 197307, 207272, 233181, 263076, 284999, 310908, 394614, 466362, 526152, 569998, 621816, 789228, 854997, 932724, 1139996, 1578456, 1709994, 1865448, 2279992, 2564991, 3419988, 5129982, 6839976, 10259964, 20519928]

約数ペア:

[(1, 20519928), (2, 10259964), (3, 6839976), (4, 5129982), (6, 3419988), (8, 2564991), (9, 2279992), (11, 1865448), (12, 1709994), (13, 1578456), (18, 1139996), (22, 932724), (24, 854997), (26, 789228), (33, 621816), (36, 569998), (39, 526152), (44, 466362), (52, 394614), (66, 310908), (72, 284999), (78, 263076), (88, 233181), (99, 207272), (104, 197307), (117, 175384), (132, 155454), (143, 143496), (156, 131538), (198, 103636), (234, 87692), (264, 77727), (286, 71748), (312, 65769), (396, 51818), (429, 47832), (468, 43846), (572, 35874), (792, 25909), (858, 23916), (936, 21923), (1144, 17937), (1287, 15944), (1716, 11958), (1993, 10296), (2574, 7972), (3432, 5979), (3986, 5148)]