20455330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4003}}^1$

素因数の和:4090

約数の個数: 32

約数和(自身を含む): 42666624

約数和(自身を除く): 22211294

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 73, 146, 365, 511, 730, 1022, 2555, 4003, 5110, 8006, 20015, 28021, 40030, 56042, 140105, 280210, 292219, 584438, 1461095, 2045533, 2922190, 4091066, 10227665, 20455330]

約数ペア:

[(1, 20455330), (2, 10227665), (5, 4091066), (7, 2922190), (10, 2045533), (14, 1461095), (35, 584438), (70, 292219), (73, 280210), (146, 140105), (365, 56042), (511, 40030), (730, 28021), (1022, 20015), (2555, 8006), (4003, 5110)]