81401724

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{757}}^1$

素因数の和:899

約数の個数: 72

約数和(自身を含む): 215211360

約数和(自身を除く): 133809636

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 103, 116, 174, 206, 261, 309, 348, 412, 522, 618, 757, 927, 1044, 1236, 1514, 1854, 2271, 2987, 3028, 3708, 4542, 5974, 6813, 8961, 9084, 11948, 13626, 17922, 21953, 26883, 27252, 35844, 43906, 53766, 65859, 77971, 87812, 107532, 131718, 155942, 197577, 233913, 263436, 311884, 395154, 467826, 701739, 790308, 935652, 1403478, 2261159, 2806956, 4522318, 6783477, 9044636, 13566954, 20350431, 27133908, 40700862, 81401724]

約数ペア:

[(1, 81401724), (2, 40700862), (3, 27133908), (4, 20350431), (6, 13566954), (9, 9044636), (12, 6783477), (18, 4522318), (29, 2806956), (36, 2261159), (58, 1403478), (87, 935652), (103, 790308), (116, 701739), (174, 467826), (206, 395154), (261, 311884), (309, 263436), (348, 233913), (412, 197577), (522, 155942), (618, 131718), (757, 107532), (927, 87812), (1044, 77971), (1236, 65859), (1514, 53766), (1854, 43906), (2271, 35844), (2987, 27252), (3028, 26883), (3708, 21953), (4542, 17922), (5974, 13626), (6813, 11948), (8961, 9084)]