821426788

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{8713}}^1$

素因数の和:8781

約数の個数: 72

約数和(自身を含む): 1849703352

約数和(自身を除く): 1028276564

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 37, 49, 52, 74, 91, 98, 148, 182, 196, 259, 364, 481, 518, 637, 962, 1036, 1274, 1813, 1924, 2548, 3367, 3626, 6734, 7252, 8713, 13468, 17426, 23569, 34852, 47138, 60991, 94276, 113269, 121982, 226538, 243964, 322381, 426937, 453076, 644762, 792883, 853874, 1289524, 1585766, 1707748, 2256667, 3171532, 4190953, 4513334, 5550181, 8381906, 9026668, 11100362, 15796669, 16763812, 22200724, 29336671, 31593338, 58673342, 63186676, 117346684, 205356697, 410713394, 821426788]

約数ペア:

[(1, 821426788), (2, 410713394), (4, 205356697), (7, 117346684), (13, 63186676), (14, 58673342), (26, 31593338), (28, 29336671), (37, 22200724), (49, 16763812), (52, 15796669), (74, 11100362), (91, 9026668), (98, 8381906), (148, 5550181), (182, 4513334), (196, 4190953), (259, 3171532), (364, 2256667), (481, 1707748), (518, 1585766), (637, 1289524), (962, 853874), (1036, 792883), (1274, 644762), (1813, 453076), (1924, 426937), (2548, 322381), (3367, 243964), (3626, 226538), (6734, 121982), (7252, 113269), (8713, 94276), (13468, 60991), (17426, 47138), (23569, 34852)]