20455120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{36527}}^1$

素因数の和:36547

約数の個数: 40

約数和(自身を含む): 54353664

約数和(自身を除く): 33898544

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 36527, 73054, 146108, 182635, 255689, 292216, 365270, 511378, 584432, 730540, 1022756, 1278445, 1461080, 2045512, 2556890, 2922160, 4091024, 5113780, 10227560, 20455120]

約数ペア:

[(1, 20455120), (2, 10227560), (4, 5113780), (5, 4091024), (7, 2922160), (8, 2556890), (10, 2045512), (14, 1461080), (16, 1278445), (20, 1022756), (28, 730540), (35, 584432), (40, 511378), (56, 365270), (70, 292216), (80, 255689), (112, 182635), (140, 146108), (280, 73054), (560, 36527)]