2780840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3659}}^1$

素因数の和:3689

約数の個数: 32

約数和(自身を含む): 6588000

約数和(自身を除く): 3807160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 3659, 7318, 14636, 18295, 29272, 36590, 69521, 73180, 139042, 146360, 278084, 347605, 556168, 695210, 1390420, 2780840]

約数ペア:

[(1, 2780840), (2, 1390420), (4, 695210), (5, 556168), (8, 347605), (10, 278084), (19, 146360), (20, 139042), (38, 73180), (40, 69521), (76, 36590), (95, 29272), (152, 18295), (190, 14636), (380, 7318), (760, 3659)]