20720544

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{16603}}^1$

素因数の和:16629

約数の個数: 48

約数和(自身を含む): 58578912

約数和(自身を除く): 37858368

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 96, 104, 156, 208, 312, 416, 624, 1248, 16603, 33206, 49809, 66412, 99618, 132824, 199236, 215839, 265648, 398472, 431678, 531296, 647517, 796944, 863356, 1295034, 1593888, 1726712, 2590068, 3453424, 5180136, 6906848, 10360272, 20720544]

約数ペア:

[(1, 20720544), (2, 10360272), (3, 6906848), (4, 5180136), (6, 3453424), (8, 2590068), (12, 1726712), (13, 1593888), (16, 1295034), (24, 863356), (26, 796944), (32, 647517), (39, 531296), (48, 431678), (52, 398472), (78, 265648), (96, 215839), (104, 199236), (156, 132824), (208, 99618), (312, 66412), (416, 49809), (624, 33206), (1248, 16603)]