338536420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{4423}}^1$

素因数の和:4564

約数の個数: 48

約数和(自身を含む): 735799680

約数和(自身を除く): 397263260

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 89, 172, 178, 215, 356, 430, 445, 860, 890, 1780, 3827, 4423, 7654, 8846, 15308, 17692, 19135, 22115, 38270, 44230, 76540, 88460, 190189, 380378, 393647, 760756, 787294, 950945, 1574588, 1901890, 1968235, 3803780, 3936470, 7872940, 16926821, 33853642, 67707284, 84634105, 169268210, 338536420]

約数ペア:

[(1, 338536420), (2, 169268210), (4, 84634105), (5, 67707284), (10, 33853642), (20, 16926821), (43, 7872940), (86, 3936470), (89, 3803780), (172, 1968235), (178, 1901890), (215, 1574588), (356, 950945), (430, 787294), (445, 760756), (860, 393647), (890, 380378), (1780, 190189), (3827, 88460), (4423, 76540), (7654, 44230), (8846, 38270), (15308, 22115), (17692, 19135)]