1280457780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{3048709}}^1$

素因数の和:3048728

約数の個数: 48

約数和(自身を含む): 4097466240

約数和(自身を除く): 2817008460

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 3048709, 6097418, 9146127, 12194836, 15243545, 18292254, 21340963, 30487090, 36584508, 42681926, 45730635, 60974180, 64022889, 85363852, 91461270, 106704815, 128045778, 182922540, 213409630, 256091556, 320114445, 426819260, 640228890, 1280457780]

約数ペア:

[(1, 1280457780), (2, 640228890), (3, 426819260), (4, 320114445), (5, 256091556), (6, 213409630), (7, 182922540), (10, 128045778), (12, 106704815), (14, 91461270), (15, 85363852), (20, 64022889), (21, 60974180), (28, 45730635), (30, 42681926), (35, 36584508), (42, 30487090), (60, 21340963), (70, 18292254), (84, 15243545), (105, 12194836), (140, 9146127), (210, 6097418), (420, 3048709)]