181561870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{563}}^1$

素因数の和:865

約数の個数: 64

約数和(自身を含む): 397633536

約数和(自身を除く): 216071666

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 119, 170, 238, 271, 542, 563, 595, 1126, 1190, 1355, 1897, 2710, 2815, 3794, 3941, 4607, 5630, 7882, 9214, 9485, 9571, 18970, 19142, 19705, 23035, 32249, 39410, 46070, 47855, 64498, 66997, 95710, 133994, 152573, 161245, 305146, 322490, 334985, 669970, 762865, 1068011, 1525730, 2136022, 2593741, 5187482, 5340055, 10680110, 12968705, 18156187, 25937410, 36312374, 90780935, 181561870]

約数ペア:

[(1, 181561870), (2, 90780935), (5, 36312374), (7, 25937410), (10, 18156187), (14, 12968705), (17, 10680110), (34, 5340055), (35, 5187482), (70, 2593741), (85, 2136022), (119, 1525730), (170, 1068011), (238, 762865), (271, 669970), (542, 334985), (563, 322490), (595, 305146), (1126, 161245), (1190, 152573), (1355, 133994), (1897, 95710), (2710, 66997), (2815, 64498), (3794, 47855), (3941, 46070), (4607, 39410), (5630, 32249), (7882, 23035), (9214, 19705), (9485, 19142), (9571, 18970)]