21452880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89387}}^1$

素因数の和:89403

約数の個数: 40

約数和(自身を含む): 66504672

約数和(自身を除く): 45051792

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 89387, 178774, 268161, 357548, 446935, 536322, 715096, 893870, 1072644, 1340805, 1430192, 1787740, 2145288, 2681610, 3575480, 4290576, 5363220, 7150960, 10726440, 21452880]

約数ペア:

[(1, 21452880), (2, 10726440), (3, 7150960), (4, 5363220), (5, 4290576), (6, 3575480), (8, 2681610), (10, 2145288), (12, 1787740), (15, 1430192), (16, 1340805), (20, 1072644), (24, 893870), (30, 715096), (40, 536322), (48, 446935), (60, 357548), (80, 268161), (120, 178774), (240, 89387)]