257870466

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{227399}}^1$

素因数の和:227420

約数の個数: 40

約数和(自身を含む): 660369600

約数和(自身を除く): 402499134

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 378, 567, 1134, 227399, 454798, 682197, 1364394, 1591793, 2046591, 3183586, 4093182, 4775379, 6139773, 9550758, 12279546, 14326137, 18419319, 28652274, 36838638, 42978411, 85956822, 128935233, 257870466]

約数ペア:

[(1, 257870466), (2, 128935233), (3, 85956822), (6, 42978411), (7, 36838638), (9, 28652274), (14, 18419319), (18, 14326137), (21, 12279546), (27, 9550758), (42, 6139773), (54, 4775379), (63, 4093182), (81, 3183586), (126, 2046591), (162, 1591793), (189, 1364394), (378, 682197), (567, 454798), (1134, 227399)]