820161412

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{313}}^1\times {\mathrm{461}}^1$

素因数の和:821

約数の個数: 72

約数和(自身を含む): 1736463960

約数和(自身を除く): 916302548

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 98, 116, 196, 203, 313, 406, 461, 626, 812, 922, 1252, 1421, 1844, 2191, 2842, 3227, 4382, 5684, 6454, 8764, 9077, 12908, 13369, 15337, 18154, 22589, 26738, 30674, 36308, 45178, 53476, 61348, 63539, 90356, 93583, 127078, 144293, 187166, 254156, 288586, 374332, 444773, 577172, 655081, 889546, 1010051, 1310162, 1779092, 2020102, 2620324, 4040204, 4184497, 7070357, 8368994, 14140714, 16737988, 28281428, 29291479, 58582958, 117165916, 205040353, 410080706, 820161412]

約数ペア:

[(1, 820161412), (2, 410080706), (4, 205040353), (7, 117165916), (14, 58582958), (28, 29291479), (29, 28281428), (49, 16737988), (58, 14140714), (98, 8368994), (116, 7070357), (196, 4184497), (203, 4040204), (313, 2620324), (406, 2020102), (461, 1779092), (626, 1310162), (812, 1010051), (922, 889546), (1252, 655081), (1421, 577172), (1844, 444773), (2191, 374332), (2842, 288586), (3227, 254156), (4382, 187166), (5684, 144293), (6454, 127078), (8764, 93583), (9077, 90356), (12908, 63539), (13369, 61348), (15337, 53476), (18154, 45178), (22589, 36308), (26738, 30674)]