21689600

素因数分解:

$2^8\times 5^2\times {\mathrm{3389}}^1$

素因数の和:3415

約数の個数: 54

約数和(自身を含む): 53700990

約数和(自身を除く): 32011390

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 640, 800, 1280, 1600, 3200, 3389, 6400, 6778, 13556, 16945, 27112, 33890, 54224, 67780, 84725, 108448, 135560, 169450, 216896, 271120, 338900, 433792, 542240, 677800, 867584, 1084480, 1355600, 2168960, 2711200, 4337920, 5422400, 10844800, 21689600]

約数ペア:

[(1, 21689600), (2, 10844800), (4, 5422400), (5, 4337920), (8, 2711200), (10, 2168960), (16, 1355600), (20, 1084480), (25, 867584), (32, 677800), (40, 542240), (50, 433792), (64, 338900), (80, 271120), (100, 216896), (128, 169450), (160, 135560), (200, 108448), (256, 84725), (320, 67780), (400, 54224), (640, 33890), (800, 27112), (1280, 16945), (1600, 13556), (3200, 6778), (3389, 6400)]