20372508

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{431}}^1$

素因数の和:555

約数の個数: 72

約数和(自身を含む): 56137536

約数和(自身を除く): 35765028

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 101, 117, 156, 202, 234, 303, 404, 431, 468, 606, 862, 909, 1212, 1293, 1313, 1724, 1818, 2586, 2626, 3636, 3879, 3939, 5172, 5252, 5603, 7758, 7878, 11206, 11817, 15516, 15756, 16809, 22412, 23634, 33618, 43531, 47268, 50427, 67236, 87062, 100854, 130593, 174124, 201708, 261186, 391779, 522372, 565903, 783558, 1131806, 1567116, 1697709, 2263612, 3395418, 5093127, 6790836, 10186254, 20372508]

約数ペア:

[(1, 20372508), (2, 10186254), (3, 6790836), (4, 5093127), (6, 3395418), (9, 2263612), (12, 1697709), (13, 1567116), (18, 1131806), (26, 783558), (36, 565903), (39, 522372), (52, 391779), (78, 261186), (101, 201708), (117, 174124), (156, 130593), (202, 100854), (234, 87062), (303, 67236), (404, 50427), (431, 47268), (468, 43531), (606, 33618), (862, 23634), (909, 22412), (1212, 16809), (1293, 15756), (1313, 15516), (1724, 11817), (1818, 11206), (2586, 7878), (2626, 7758), (3636, 5603), (3879, 5252), (3939, 5172)]