168311720

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{57641}}^1$

素因数の和:57725

約数の個数: 32

約数和(自身を含む): 383895720

約数和(自身を除く): 215584000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 57641, 115282, 230564, 288205, 461128, 576410, 1152820, 2305640, 4207793, 8415586, 16831172, 21038965, 33662344, 42077930, 84155860, 168311720]

約数ペア:

[(1, 168311720), (2, 84155860), (4, 42077930), (5, 33662344), (8, 21038965), (10, 16831172), (20, 8415586), (40, 4207793), (73, 2305640), (146, 1152820), (292, 576410), (365, 461128), (584, 288205), (730, 230564), (1460, 115282), (2920, 57641)]