20764566860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1\times {\mathrm{2389}}^1$

素因数の和:2763

約数の個数: 96

約数和(自身を含む): 46616472000

約数和(自身を除く): 25851905140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 257, 356, 380, 445, 514, 890, 1028, 1285, 1691, 1780, 2389, 2570, 3382, 4778, 4883, 5140, 6764, 8455, 9556, 9766, 11945, 16910, 19532, 22873, 23890, 24415, 33820, 45391, 45746, 47780, 48830, 90782, 91492, 97660, 114365, 181564, 212621, 226955, 228730, 425242, 434587, 453910, 457460, 613973, 850484, 869174, 907820, 1063105, 1227946, 1738348, 2126210, 2172935, 2455892, 3069865, 4039799, 4252420, 4345870, 6139730, 8079598, 8691740, 11665487, 12279460, 16159196, 20198995, 23330974, 40397990, 46661948, 54643597, 58327435, 80795980, 109287194, 116654870, 218574388, 233309740, 273217985, 546435970, 1038228343, 1092871940, 2076456686, 4152913372, 5191141715, 10382283430, 20764566860]

約数ペア:

[(1, 20764566860), (2, 10382283430), (4, 5191141715), (5, 4152913372), (10, 2076456686), (19, 1092871940), (20, 1038228343), (38, 546435970), (76, 273217985), (89, 233309740), (95, 218574388), (178, 116654870), (190, 109287194), (257, 80795980), (356, 58327435), (380, 54643597), (445, 46661948), (514, 40397990), (890, 23330974), (1028, 20198995), (1285, 16159196), (1691, 12279460), (1780, 11665487), (2389, 8691740), (2570, 8079598), (3382, 6139730), (4778, 4345870), (4883, 4252420), (5140, 4039799), (6764, 3069865), (8455, 2455892), (9556, 2172935), (9766, 2126210), (11945, 1738348), (16910, 1227946), (19532, 1063105), (22873, 907820), (23890, 869174), (24415, 850484), (33820, 613973), (45391, 457460), (45746, 453910), (47780, 434587), (48830, 425242), (90782, 228730), (91492, 226955), (97660, 212621), (114365, 181564)]