20116395

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 37975392

約数和(自身を除く): 17858997

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 137, 195, 251, 411, 585, 685, 753, 1233, 1255, 1781, 2055, 2259, 3263, 3765, 5343, 6165, 8905, 9789, 11295, 16029, 16315, 26715, 29367, 34387, 48945, 80145, 103161, 146835, 171935, 309483, 447031, 515805, 1341093, 1547415, 2235155, 4023279, 6705465, 20116395]

約数ペア:

[(1, 20116395), (3, 6705465), (5, 4023279), (9, 2235155), (13, 1547415), (15, 1341093), (39, 515805), (45, 447031), (65, 309483), (117, 171935), (137, 146835), (195, 103161), (251, 80145), (411, 48945), (585, 34387), (685, 29367), (753, 26715), (1233, 16315), (1255, 16029), (1781, 11295), (2055, 9789), (2259, 8905), (3263, 6165), (3765, 5343)]