20280251901

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1153}}^1\times {\mathrm{3391}}^1$

素因数の和:4586

約数の個数: 64

約数和(自身を含む): 35072737280

約数和(自身を除く): 14792485379

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1153, 1729, 3391, 3459, 5187, 8071, 10173, 14989, 21907, 23737, 24213, 44083, 44967, 64429, 65721, 71211, 104923, 132249, 153349, 193287, 284791, 308581, 314769, 451003, 460047, 837577, 854373, 925743, 1353009, 1993537, 2512731, 3909823, 5863039, 5980611, 11729469, 17589117, 27368761, 50827699, 74286637, 82106283, 152483097, 222859911, 355793893, 520006459, 965726281, 1067381679, 1560019377, 2897178843, 6760083967, 20280251901]

約数ペア:

[(1, 20280251901), (3, 6760083967), (7, 2897178843), (13, 1560019377), (19, 1067381679), (21, 965726281), (39, 520006459), (57, 355793893), (91, 222859911), (133, 152483097), (247, 82106283), (273, 74286637), (399, 50827699), (741, 27368761), (1153, 17589117), (1729, 11729469), (3391, 5980611), (3459, 5863039), (5187, 3909823), (8071, 2512731), (10173, 1993537), (14989, 1353009), (21907, 925743), (23737, 854373), (24213, 837577), (44083, 460047), (44967, 451003), (64429, 314769), (65721, 308581), (71211, 284791), (104923, 193287), (132249, 153349)]