1390290880

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{394969}}^1$

素因数の和:394997

約数の個数: 56

約数和(自身を含む): 3611605680

約数和(自身を除く): 2221314800

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 394969, 789938, 1579876, 1974845, 3159752, 3949690, 4344659, 6319504, 7899380, 8689318, 12639008, 15798760, 17378636, 21723295, 25278016, 31597520, 34757272, 43446590, 63195040, 69514544, 86893180, 126390080, 139029088, 173786360, 278058176, 347572720, 695145440, 1390290880]

約数ペア:

[(1, 1390290880), (2, 695145440), (4, 347572720), (5, 278058176), (8, 173786360), (10, 139029088), (11, 126390080), (16, 86893180), (20, 69514544), (22, 63195040), (32, 43446590), (40, 34757272), (44, 31597520), (55, 25278016), (64, 21723295), (80, 17378636), (88, 15798760), (110, 12639008), (160, 8689318), (176, 7899380), (220, 6319504), (320, 4344659), (352, 3949690), (440, 3159752), (704, 1974845), (880, 1579876), (1760, 789938), (3520, 394969)]