1639656675

素因数分解:

$3^4\times 5^2\times {\mathrm{809707}}^1$

素因数の和:809729

約数の個数: 30

約数和(自身を含む): 3037214708

約数和(自身を除く): 1397558033

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 809707, 2429121, 4048535, 7287363, 12145605, 20242675, 21862089, 36436815, 60728025, 65586267, 109310445, 182184075, 327931335, 546552225, 1639656675]

約数ペア:

[(1, 1639656675), (3, 546552225), (5, 327931335), (9, 182184075), (15, 109310445), (25, 65586267), (27, 60728025), (45, 36436815), (75, 21862089), (81, 20242675), (135, 12145605), (225, 7287363), (405, 4048535), (675, 2429121), (2025, 809707)]