21125440

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{9431}}^1$

素因数の和:9455

約数の個数: 56

約数和(自身を含む): 57497472

約数和(自身を除く): 36372032

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 9431, 18862, 37724, 47155, 66017, 75448, 94310, 132034, 150896, 188620, 264068, 301792, 330085, 377240, 528136, 603584, 660170, 754480, 1056272, 1320340, 1508960, 2112544, 2640680, 3017920, 4225088, 5281360, 10562720, 21125440]

約数ペア:

[(1, 21125440), (2, 10562720), (4, 5281360), (5, 4225088), (7, 3017920), (8, 2640680), (10, 2112544), (14, 1508960), (16, 1320340), (20, 1056272), (28, 754480), (32, 660170), (35, 603584), (40, 528136), (56, 377240), (64, 330085), (70, 301792), (80, 264068), (112, 188620), (140, 150896), (160, 132034), (224, 94310), (280, 75448), (320, 66017), (448, 47155), (560, 37724), (1120, 18862), (2240, 9431)]