20527728

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{491}}^1$

素因数の和:582

約数の個数: 80

約数和(自身を含む): 58079616

約数和(自身を除く): 37551888

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 67, 78, 104, 134, 156, 201, 208, 268, 312, 402, 491, 536, 624, 804, 871, 982, 1072, 1473, 1608, 1742, 1964, 2613, 2946, 3216, 3484, 3928, 5226, 5892, 6383, 6968, 7856, 10452, 11784, 12766, 13936, 19149, 20904, 23568, 25532, 32897, 38298, 41808, 51064, 65794, 76596, 98691, 102128, 131588, 153192, 197382, 263176, 306384, 394764, 427661, 526352, 789528, 855322, 1282983, 1579056, 1710644, 2565966, 3421288, 5131932, 6842576, 10263864, 20527728]

約数ペア:

[(1, 20527728), (2, 10263864), (3, 6842576), (4, 5131932), (6, 3421288), (8, 2565966), (12, 1710644), (13, 1579056), (16, 1282983), (24, 855322), (26, 789528), (39, 526352), (48, 427661), (52, 394764), (67, 306384), (78, 263176), (104, 197382), (134, 153192), (156, 131588), (201, 102128), (208, 98691), (268, 76596), (312, 65794), (402, 51064), (491, 41808), (536, 38298), (624, 32897), (804, 25532), (871, 23568), (982, 20904), (1072, 19149), (1473, 13936), (1608, 12766), (1742, 11784), (1964, 10452), (2613, 7856), (2946, 6968), (3216, 6383), (3484, 5892), (3928, 5226)]