28712138

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{727}}^1$

素因数の和:787

約数の個数: 48

約数和(自身を含む): 55770624

約数和(自身を除く): 27058486

約数列:

[1, 2, 7, 13, 14, 26, 31, 49, 62, 91, 98, 182, 217, 403, 434, 637, 727, 806, 1274, 1454, 1519, 2821, 3038, 5089, 5642, 9451, 10178, 18902, 19747, 22537, 35623, 39494, 45074, 66157, 71246, 132314, 157759, 292981, 315518, 463099, 585962, 926198, 1104313, 2050867, 2208626, 4101734, 14356069, 28712138]

約数ペア:

[(1, 28712138), (2, 14356069), (7, 4101734), (13, 2208626), (14, 2050867), (26, 1104313), (31, 926198), (49, 585962), (62, 463099), (91, 315518), (98, 292981), (182, 157759), (217, 132314), (403, 71246), (434, 66157), (637, 45074), (727, 39494), (806, 35623), (1274, 22537), (1454, 19747), (1519, 18902), (2821, 10178), (3038, 9451), (5089, 5642)]