20377016

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{257}}^1$

素因数の和:344

約数の個数: 64

約数和(自身を含む): 45139680

約数和(自身を除く): 24762664

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 53, 68, 88, 106, 136, 187, 212, 257, 374, 424, 514, 583, 748, 901, 1028, 1166, 1496, 1802, 2056, 2332, 2827, 3604, 4369, 4664, 5654, 7208, 8738, 9911, 11308, 13621, 17476, 19822, 22616, 27242, 34952, 39644, 48059, 54484, 79288, 96118, 108968, 149831, 192236, 231557, 299662, 384472, 463114, 599324, 926228, 1198648, 1852456, 2547127, 5094254, 10188508, 20377016]

約数ペア:

[(1, 20377016), (2, 10188508), (4, 5094254), (8, 2547127), (11, 1852456), (17, 1198648), (22, 926228), (34, 599324), (44, 463114), (53, 384472), (68, 299662), (88, 231557), (106, 192236), (136, 149831), (187, 108968), (212, 96118), (257, 79288), (374, 54484), (424, 48059), (514, 39644), (583, 34952), (748, 27242), (901, 22616), (1028, 19822), (1166, 17476), (1496, 13621), (1802, 11308), (2056, 9911), (2332, 8738), (2827, 7208), (3604, 5654), (4369, 4664)]