8143880

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{2789}}^1$

素因数の和:2873

約数の個数: 32

約数和(自身を含む): 18581400

約数和(自身を除く): 10437520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2789, 2920, 5578, 11156, 13945, 22312, 27890, 55780, 111560, 203597, 407194, 814388, 1017985, 1628776, 2035970, 4071940, 8143880]

約数ペア:

[(1, 8143880), (2, 4071940), (4, 2035970), (5, 1628776), (8, 1017985), (10, 814388), (20, 407194), (40, 203597), (73, 111560), (146, 55780), (292, 27890), (365, 22312), (584, 13945), (730, 11156), (1460, 5578), (2789, 2920)]