81891888

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{499}}^1$

素因数の和:786

約数の個数: 80

約数和(自身を含む): 229152000

約数和(自身を除く): 147260112

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 263, 312, 499, 526, 624, 789, 998, 1052, 1497, 1578, 1996, 2104, 2994, 3156, 3419, 3992, 4208, 5988, 6312, 6487, 6838, 7984, 10257, 11976, 12624, 12974, 13676, 19461, 20514, 23952, 25948, 27352, 38922, 41028, 51896, 54704, 77844, 82056, 103792, 131237, 155688, 164112, 262474, 311376, 393711, 524948, 787422, 1049896, 1574844, 1706081, 2099792, 3149688, 3412162, 5118243, 6299376, 6824324, 10236486, 13648648, 20472972, 27297296, 40945944, 81891888]

約数ペア:

[(1, 81891888), (2, 40945944), (3, 27297296), (4, 20472972), (6, 13648648), (8, 10236486), (12, 6824324), (13, 6299376), (16, 5118243), (24, 3412162), (26, 3149688), (39, 2099792), (48, 1706081), (52, 1574844), (78, 1049896), (104, 787422), (156, 524948), (208, 393711), (263, 311376), (312, 262474), (499, 164112), (526, 155688), (624, 131237), (789, 103792), (998, 82056), (1052, 77844), (1497, 54704), (1578, 51896), (1996, 41028), (2104, 38922), (2994, 27352), (3156, 25948), (3419, 23952), (3992, 20514), (4208, 19461), (5988, 13676), (6312, 12974), (6487, 12624), (6838, 11976), (7984, 10257)]