259421260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{13331}}^1$

素因数の和:13486

約数の個数: 48

約数和(自身を含む): 627137280

約数和(自身を除く): 367716020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3892, 4865, 9730, 13331, 19460, 26662, 53324, 66655, 93317, 133310, 186634, 266620, 373268, 466585, 933170, 1853009, 1866340, 3706018, 7412036, 9265045, 12971063, 18530090, 25942126, 37060180, 51884252, 64855315, 129710630, 259421260]

約数ペア:

[(1, 259421260), (2, 129710630), (4, 64855315), (5, 51884252), (7, 37060180), (10, 25942126), (14, 18530090), (20, 12971063), (28, 9265045), (35, 7412036), (70, 3706018), (139, 1866340), (140, 1853009), (278, 933170), (556, 466585), (695, 373268), (973, 266620), (1390, 186634), (1946, 133310), (2780, 93317), (3892, 66655), (4865, 53324), (9730, 26662), (13331, 19460)]