279917008

素因数分解:

$2^4\times 7^2\times {\mathrm{557}}^1\times {\mathrm{641}}^1$

素因数の和:1220

約数の個数: 60

約数和(自身を含む): 633003012

約数和(自身を除く): 353086004

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 557, 641, 784, 1114, 1282, 2228, 2564, 3899, 4456, 4487, 5128, 7798, 8912, 8974, 10256, 15596, 17948, 27293, 31192, 31409, 35896, 54586, 62384, 62818, 71792, 109172, 125636, 218344, 251272, 357037, 436688, 502544, 714074, 1428148, 2499259, 2856296, 4998518, 5712592, 9997036, 17494813, 19994072, 34989626, 39988144, 69979252, 139958504, 279917008]

約数ペア:

[(1, 279917008), (2, 139958504), (4, 69979252), (7, 39988144), (8, 34989626), (14, 19994072), (16, 17494813), (28, 9997036), (49, 5712592), (56, 4998518), (98, 2856296), (112, 2499259), (196, 1428148), (392, 714074), (557, 502544), (641, 436688), (784, 357037), (1114, 251272), (1282, 218344), (2228, 125636), (2564, 109172), (3899, 71792), (4456, 62818), (4487, 62384), (5128, 54586), (7798, 35896), (8912, 31409), (8974, 31192), (10256, 27293), (15596, 17948)]