80987956

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:197

約数の個数: 96

約数和(自身を含む): 180633600

約数和(自身を除く): 99645644

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 41, 47, 76, 79, 82, 94, 133, 158, 164, 188, 266, 287, 316, 329, 532, 553, 574, 658, 779, 893, 1106, 1148, 1316, 1501, 1558, 1786, 1927, 2212, 3002, 3116, 3239, 3572, 3713, 3854, 5453, 6004, 6251, 6478, 7426, 7708, 10507, 10906, 12502, 12956, 13489, 14852, 21014, 21812, 22673, 25004, 25991, 26978, 36613, 42028, 45346, 51982, 53956, 61541, 70547, 73226, 90692, 103964, 123082, 141094, 146452, 152233, 246164, 256291, 282188, 304466, 430787, 493829, 512582, 608932, 861574, 987658, 1025164, 1065631, 1723148, 1975316, 2131262, 2892427, 4262524, 5784854, 11569708, 20246989, 40493978, 80987956]

約数ペア:

[(1, 80987956), (2, 40493978), (4, 20246989), (7, 11569708), (14, 5784854), (19, 4262524), (28, 2892427), (38, 2131262), (41, 1975316), (47, 1723148), (76, 1065631), (79, 1025164), (82, 987658), (94, 861574), (133, 608932), (158, 512582), (164, 493829), (188, 430787), (266, 304466), (287, 282188), (316, 256291), (329, 246164), (532, 152233), (553, 146452), (574, 141094), (658, 123082), (779, 103964), (893, 90692), (1106, 73226), (1148, 70547), (1316, 61541), (1501, 53956), (1558, 51982), (1786, 45346), (1927, 42028), (2212, 36613), (3002, 26978), (3116, 25991), (3239, 25004), (3572, 22673), (3713, 21812), (3854, 21014), (5453, 14852), (6004, 13489), (6251, 12956), (6478, 12502), (7426, 10906), (7708, 10507)]