28181478

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{401}}^1$

素因数の和:489

約数の個数: 64

約数和(自身を含む): 65644992

約数和(自身を除く): 37463514

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 53, 78, 102, 106, 159, 221, 318, 401, 442, 663, 689, 802, 901, 1203, 1326, 1378, 1802, 2067, 2406, 2703, 4134, 5213, 5406, 6817, 10426, 11713, 13634, 15639, 20451, 21253, 23426, 31278, 35139, 40902, 42506, 63759, 70278, 88621, 127518, 177242, 265863, 276289, 361301, 531726, 552578, 722602, 828867, 1083903, 1657734, 2167806, 4696913, 9393826, 14090739, 28181478]

約数ペア:

[(1, 28181478), (2, 14090739), (3, 9393826), (6, 4696913), (13, 2167806), (17, 1657734), (26, 1083903), (34, 828867), (39, 722602), (51, 552578), (53, 531726), (78, 361301), (102, 276289), (106, 265863), (159, 177242), (221, 127518), (318, 88621), (401, 70278), (442, 63759), (663, 42506), (689, 40902), (802, 35139), (901, 31278), (1203, 23426), (1326, 21253), (1378, 20451), (1802, 15639), (2067, 13634), (2406, 11713), (2703, 10426), (4134, 6817), (5213, 5406)]