131621120

素因数分解:

$2^8\times 5^1\times {\mathrm{102829}}^1$

素因数の和:102850

約数の個数: 36

約数和(自身を含む): 315276780

約数和(自身を除く): 183655660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 102829, 205658, 411316, 514145, 822632, 1028290, 1645264, 2056580, 3290528, 4113160, 6581056, 8226320, 13162112, 16452640, 26324224, 32905280, 65810560, 131621120]

約数ペア:

[(1, 131621120), (2, 65810560), (4, 32905280), (5, 26324224), (8, 16452640), (10, 13162112), (16, 8226320), (20, 6581056), (32, 4113160), (40, 3290528), (64, 2056580), (80, 1645264), (128, 1028290), (160, 822632), (256, 514145), (320, 411316), (640, 205658), (1280, 102829)]