201819280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{194057}}^1$

素因数の和:194083

約数の個数: 40

約数和(自身を含む): 505327032

約数和(自身を除く): 303507752

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 194057, 388114, 776228, 970285, 1552456, 1940570, 2522741, 3104912, 3881140, 5045482, 7762280, 10090964, 12613705, 15524560, 20181928, 25227410, 40363856, 50454820, 100909640, 201819280]

約数ペア:

[(1, 201819280), (2, 100909640), (4, 50454820), (5, 40363856), (8, 25227410), (10, 20181928), (13, 15524560), (16, 12613705), (20, 10090964), (26, 7762280), (40, 5045482), (52, 3881140), (65, 3104912), (80, 2522741), (104, 1940570), (130, 1552456), (208, 970285), (260, 776228), (520, 388114), (1040, 194057)]