649440285

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{12959}}^1$

素因数の和:13237

約数の個数: 32

約数和(自身を含む): 1123476480

約数和(自身を除く): 474036195

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 257, 771, 1285, 3341, 3855, 10023, 12959, 16705, 38877, 50115, 64795, 168467, 194385, 505401, 842335, 2527005, 3330463, 9991389, 16652315, 43296019, 49956945, 129888057, 216480095, 649440285]

約数ペア:

[(1, 649440285), (3, 216480095), (5, 129888057), (13, 49956945), (15, 43296019), (39, 16652315), (65, 9991389), (195, 3330463), (257, 2527005), (771, 842335), (1285, 505401), (3341, 194385), (3855, 168467), (10023, 64795), (12959, 50115), (16705, 38877)]