26501840

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1289}}^1$

素因数の和:1559

約数の個数: 40

約数和(自身を含む): 61904520

約数和(自身を除く): 35402680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 1289, 2056, 2570, 2578, 4112, 5140, 5156, 6445, 10280, 10312, 12890, 20560, 20624, 25780, 51560, 103120, 331273, 662546, 1325092, 1656365, 2650184, 3312730, 5300368, 6625460, 13250920, 26501840]

約数ペア:

[(1, 26501840), (2, 13250920), (4, 6625460), (5, 5300368), (8, 3312730), (10, 2650184), (16, 1656365), (20, 1325092), (40, 662546), (80, 331273), (257, 103120), (514, 51560), (1028, 25780), (1285, 20624), (1289, 20560), (2056, 12890), (2570, 10312), (2578, 10280), (4112, 6445), (5140, 5156)]