128596780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{5099}}^1$

素因数の和:5218

約数の個数: 48

約数和(自身を含む): 293882400

約数和(自身を除く): 165285620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 97, 130, 194, 260, 388, 485, 970, 1261, 1940, 2522, 5044, 5099, 6305, 10198, 12610, 20396, 25220, 25495, 50990, 66287, 101980, 132574, 265148, 331435, 494603, 662870, 989206, 1325740, 1978412, 2473015, 4946030, 6429839, 9892060, 12859678, 25719356, 32149195, 64298390, 128596780]

約数ペア:

[(1, 128596780), (2, 64298390), (4, 32149195), (5, 25719356), (10, 12859678), (13, 9892060), (20, 6429839), (26, 4946030), (52, 2473015), (65, 1978412), (97, 1325740), (130, 989206), (194, 662870), (260, 494603), (388, 331435), (485, 265148), (970, 132574), (1261, 101980), (1940, 66287), (2522, 50990), (5044, 25495), (5099, 25220), (6305, 20396), (10198, 12610)]