40493978

素因数分解:

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

素因数の和:195

約数の個数: 64

約数和(自身を含む): 77414400

約数和(自身を除く): 36920422

約数列:

[1, 2, 7, 14, 19, 38, 41, 47, 79, 82, 94, 133, 158, 266, 287, 329, 553, 574, 658, 779, 893, 1106, 1501, 1558, 1786, 1927, 3002, 3239, 3713, 3854, 5453, 6251, 6478, 7426, 10507, 10906, 12502, 13489, 21014, 22673, 25991, 26978, 36613, 45346, 51982, 61541, 70547, 73226, 123082, 141094, 152233, 256291, 304466, 430787, 493829, 512582, 861574, 987658, 1065631, 2131262, 2892427, 5784854, 20246989, 40493978]

約数ペア:

[(1, 40493978), (2, 20246989), (7, 5784854), (14, 2892427), (19, 2131262), (38, 1065631), (41, 987658), (47, 861574), (79, 512582), (82, 493829), (94, 430787), (133, 304466), (158, 256291), (266, 152233), (287, 141094), (329, 123082), (553, 73226), (574, 70547), (658, 61541), (779, 51982), (893, 45346), (1106, 36613), (1501, 26978), (1558, 25991), (1786, 22673), (1927, 21014), (3002, 13489), (3239, 12502), (3713, 10906), (3854, 10507), (5453, 7426), (6251, 6478)]