2019034480

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{64879}}^1$

素因数の和:65281

約数の個数: 40

約数和(自身を含む): 4706395200

約数和(自身を除く): 2687360720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 1556, 1945, 3112, 3890, 6224, 7780, 15560, 31120, 64879, 129758, 259516, 324395, 519032, 648790, 1038064, 1297580, 2595160, 5190320, 25237931, 50475862, 100951724, 126189655, 201903448, 252379310, 403806896, 504758620, 1009517240, 2019034480]

約数ペア:

[(1, 2019034480), (2, 1009517240), (4, 504758620), (5, 403806896), (8, 252379310), (10, 201903448), (16, 126189655), (20, 100951724), (40, 50475862), (80, 25237931), (389, 5190320), (778, 2595160), (1556, 1297580), (1945, 1038064), (3112, 648790), (3890, 519032), (6224, 324395), (7780, 259516), (15560, 129758), (31120, 64879)]