78866820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{4517}}^1$

素因数の和:4629

約数の個数: 72

約数和(自身を含む): 241749144

約数和(自身を除く): 162882324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 97, 180, 194, 291, 388, 485, 582, 873, 970, 1164, 1455, 1746, 1940, 2910, 3492, 4365, 4517, 5820, 8730, 9034, 13551, 17460, 18068, 22585, 27102, 40653, 45170, 54204, 67755, 81306, 90340, 135510, 162612, 203265, 271020, 406530, 438149, 813060, 876298, 1314447, 1752596, 2190745, 2628894, 3943341, 4381490, 5257788, 6572235, 7886682, 8762980, 13144470, 15773364, 19716705, 26288940, 39433410, 78866820]

約数ペア:

[(1, 78866820), (2, 39433410), (3, 26288940), (4, 19716705), (5, 15773364), (6, 13144470), (9, 8762980), (10, 7886682), (12, 6572235), (15, 5257788), (18, 4381490), (20, 3943341), (30, 2628894), (36, 2190745), (45, 1752596), (60, 1314447), (90, 876298), (97, 813060), (180, 438149), (194, 406530), (291, 271020), (388, 203265), (485, 162612), (582, 135510), (873, 90340), (970, 81306), (1164, 67755), (1455, 54204), (1746, 45170), (1940, 40653), (2910, 27102), (3492, 22585), (4365, 18068), (4517, 17460), (5820, 13551), (8730, 9034)]