2581437720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{221773}}^1$

素因数の和:221884

約数の個数: 64

約数和(自身を含む): 7824186720

約数和(自身を除く): 5242749000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 97, 120, 194, 291, 388, 485, 582, 776, 970, 1164, 1455, 1940, 2328, 2910, 3880, 5820, 11640, 221773, 443546, 665319, 887092, 1108865, 1330638, 1774184, 2217730, 2661276, 3326595, 4435460, 5322552, 6653190, 8870920, 13306380, 21511981, 26612760, 43023962, 64535943, 86047924, 107559905, 129071886, 172095848, 215119810, 258143772, 322679715, 430239620, 516287544, 645359430, 860479240, 1290718860, 2581437720]

約数ペア:

[(1, 2581437720), (2, 1290718860), (3, 860479240), (4, 645359430), (5, 516287544), (6, 430239620), (8, 322679715), (10, 258143772), (12, 215119810), (15, 172095848), (20, 129071886), (24, 107559905), (30, 86047924), (40, 64535943), (60, 43023962), (97, 26612760), (120, 21511981), (194, 13306380), (291, 8870920), (388, 6653190), (485, 5322552), (582, 4435460), (776, 3326595), (970, 2661276), (1164, 2217730), (1455, 1774184), (1940, 1330638), (2328, 1108865), (2910, 887092), (3880, 665319), (5820, 443546), (11640, 221773)]