640620846

素因数分解:

$2^1\times 3^3\times {\mathrm{29}}^1\times {\mathrm{409081}}^1$

素因数の和:409121

約数の個数: 32

約数和(自身を含む): 1472695200

約数和(自身を除く): 832074354

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 54, 58, 87, 174, 261, 522, 783, 1566, 409081, 818162, 1227243, 2454486, 3681729, 7363458, 11045187, 11863349, 22090374, 23726698, 35590047, 71180094, 106770141, 213540282, 320310423, 640620846]

約数ペア:

[(1, 640620846), (2, 320310423), (3, 213540282), (6, 106770141), (9, 71180094), (18, 35590047), (27, 23726698), (29, 22090374), (54, 11863349), (58, 11045187), (87, 7363458), (174, 3681729), (261, 2454486), (522, 1227243), (783, 818162), (1566, 409081)]