20452880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{36523}}^1$

素因数の和:36543

約数の個数: 40

約数和(自身を含む): 54347712

約数和(自身を除く): 33894832

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 36523, 73046, 146092, 182615, 255661, 292184, 365230, 511322, 584368, 730460, 1022644, 1278305, 1460920, 2045288, 2556610, 2921840, 4090576, 5113220, 10226440, 20452880]

約数ペア:

[(1, 20452880), (2, 10226440), (4, 5113220), (5, 4090576), (7, 2921840), (8, 2556610), (10, 2045288), (14, 1460920), (16, 1278305), (20, 1022644), (28, 730460), (35, 584368), (40, 511322), (56, 365230), (70, 292184), (80, 255661), (112, 182615), (140, 146092), (280, 73046), (560, 36523)]