12730880

素因数分解:

$2^9\times 5^1\times {\mathrm{4973}}^1$

素因数の和:4996

約数の個数: 40

約数和(自身を含む): 30530412

約数和(自身を除く): 17799532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 4973, 9946, 19892, 24865, 39784, 49730, 79568, 99460, 159136, 198920, 318272, 397840, 636544, 795680, 1273088, 1591360, 2546176, 3182720, 6365440, 12730880]

約数ペア:

[(1, 12730880), (2, 6365440), (4, 3182720), (5, 2546176), (8, 1591360), (10, 1273088), (16, 795680), (20, 636544), (32, 397840), (40, 318272), (64, 198920), (80, 159136), (128, 99460), (160, 79568), (256, 49730), (320, 39784), (512, 24865), (640, 19892), (1280, 9946), (2560, 4973)]