9955840

素因数分解:

$2^9\times 5^1\times {\mathrm{3889}}^1$

素因数の和:3912

約数の個数: 40

約数和(自身を含む): 23876820

約数和(自身を除く): 13920980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 3889, 7778, 15556, 19445, 31112, 38890, 62224, 77780, 124448, 155560, 248896, 311120, 497792, 622240, 995584, 1244480, 1991168, 2488960, 4977920, 9955840]

約数ペア:

[(1, 9955840), (2, 4977920), (4, 2488960), (5, 1991168), (8, 1244480), (10, 995584), (16, 622240), (20, 497792), (32, 311120), (40, 248896), (64, 155560), (80, 124448), (128, 77780), (160, 62224), (256, 38890), (320, 31112), (512, 19445), (640, 15556), (1280, 7778), (2560, 3889)]