20084680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6521}}^1$

素因数の和:6550

約数の個数: 64

約数和(自身を含む): 56350080

約数和(自身を除く): 36265400

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 6521, 13042, 26084, 32605, 45647, 52168, 65210, 71731, 91294, 130420, 143462, 182588, 228235, 260840, 286924, 358655, 365176, 456470, 502117, 573848, 717310, 912940, 1004234, 1434620, 1825880, 2008468, 2510585, 2869240, 4016936, 5021170, 10042340, 20084680]

約数ペア:

[(1, 20084680), (2, 10042340), (4, 5021170), (5, 4016936), (7, 2869240), (8, 2510585), (10, 2008468), (11, 1825880), (14, 1434620), (20, 1004234), (22, 912940), (28, 717310), (35, 573848), (40, 502117), (44, 456470), (55, 365176), (56, 358655), (70, 286924), (77, 260840), (88, 228235), (110, 182588), (140, 143462), (154, 130420), (220, 91294), (280, 71731), (308, 65210), (385, 52168), (440, 45647), (616, 32605), (770, 26084), (1540, 13042), (3080, 6521)]