20485888

素因数分解:

$2^8\times {\mathrm{43}}^1\times {\mathrm{1861}}^1$

素因数の和:1920

約数の個数: 36

約数和(自身を含む): 41865208

約数和(自身を除く): 21379320

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 256, 344, 688, 1376, 1861, 2752, 3722, 5504, 7444, 11008, 14888, 29776, 59552, 80023, 119104, 160046, 238208, 320092, 476416, 640184, 1280368, 2560736, 5121472, 10242944, 20485888]

約数ペア:

[(1, 20485888), (2, 10242944), (4, 5121472), (8, 2560736), (16, 1280368), (32, 640184), (43, 476416), (64, 320092), (86, 238208), (128, 160046), (172, 119104), (256, 80023), (344, 59552), (688, 29776), (1376, 14888), (1861, 11008), (2752, 7444), (3722, 5504)]