638819784

素因数分解:

$2^3\times 3^6\times {\mathrm{109537}}^1$

素因数の和:109561

約数の個数: 56

約数和(自身を含む): 1795875510

約数和(自身を除く): 1157055726

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 243, 324, 486, 648, 729, 972, 1458, 1944, 2916, 5832, 109537, 219074, 328611, 438148, 657222, 876296, 985833, 1314444, 1971666, 2628888, 2957499, 3943332, 5914998, 7886664, 8872497, 11829996, 17744994, 23659992, 26617491, 35489988, 53234982, 70979976, 79852473, 106469964, 159704946, 212939928, 319409892, 638819784]

約数ペア:

[(1, 638819784), (2, 319409892), (3, 212939928), (4, 159704946), (6, 106469964), (8, 79852473), (9, 70979976), (12, 53234982), (18, 35489988), (24, 26617491), (27, 23659992), (36, 17744994), (54, 11829996), (72, 8872497), (81, 7886664), (108, 5914998), (162, 3943332), (216, 2957499), (243, 2628888), (324, 1971666), (486, 1314444), (648, 985833), (729, 876296), (972, 657222), (1458, 438148), (1944, 328611), (2916, 219074), (5832, 109537)]