20128040275

素因数分解:

$5^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{27457}}^1$

素因数の和:27604

約数の個数: 48

約数和(自身を含む): 29417402880

約数和(自身を除く): 9289362605

約数列:

[1, 5, 7, 25, 35, 59, 71, 175, 295, 355, 413, 497, 1475, 1775, 2065, 2485, 4189, 10325, 12425, 20945, 27457, 29323, 104725, 137285, 146615, 192199, 686425, 733075, 960995, 1619963, 1949447, 4804975, 8099815, 9747235, 11339741, 13646129, 40499075, 48736175, 56698705, 68230645, 115017373, 283493525, 341153225, 575086865, 805121611, 2875434325, 4025608055, 20128040275]

約数ペア:

[(1, 20128040275), (5, 4025608055), (7, 2875434325), (25, 805121611), (35, 575086865), (59, 341153225), (71, 283493525), (175, 115017373), (295, 68230645), (355, 56698705), (413, 48736175), (497, 40499075), (1475, 13646129), (1775, 11339741), (2065, 9747235), (2485, 8099815), (4189, 4804975), (10325, 1949447), (12425, 1619963), (20945, 960995), (27457, 733075), (29323, 686425), (104725, 192199), (137285, 146615)]