20515308

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:299

約数の個数: 72

約数和(自身を含む): 53625600

約数和(自身を除く): 33110292

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 71, 121, 132, 142, 199, 213, 242, 284, 363, 398, 426, 484, 597, 726, 781, 796, 852, 1194, 1452, 1562, 2189, 2343, 2388, 3124, 4378, 4686, 6567, 8591, 8756, 9372, 13134, 14129, 17182, 24079, 25773, 26268, 28258, 34364, 42387, 48158, 51546, 56516, 72237, 84774, 96316, 103092, 144474, 155419, 169548, 288948, 310838, 466257, 621676, 932514, 1709609, 1865028, 3419218, 5128827, 6838436, 10257654, 20515308]

約数ペア:

[(1, 20515308), (2, 10257654), (3, 6838436), (4, 5128827), (6, 3419218), (11, 1865028), (12, 1709609), (22, 932514), (33, 621676), (44, 466257), (66, 310838), (71, 288948), (121, 169548), (132, 155419), (142, 144474), (199, 103092), (213, 96316), (242, 84774), (284, 72237), (363, 56516), (398, 51546), (426, 48158), (484, 42387), (597, 34364), (726, 28258), (781, 26268), (796, 25773), (852, 24079), (1194, 17182), (1452, 14129), (1562, 13134), (2189, 9372), (2343, 8756), (2388, 8591), (3124, 6567), (4378, 4686)]