257645556

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{340801}}^1$

素因数の和:340821

約数の個数: 48

約数和(自身を含む): 763396480

約数和(自身を除く): 505750924

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 340801, 681602, 1022403, 1363204, 2044806, 2385607, 3067209, 4089612, 4771214, 6134418, 7156821, 9201627, 9542428, 12268836, 14313642, 18403254, 21470463, 28627284, 36806508, 42940926, 64411389, 85881852, 128822778, 257645556]

約数ペア:

[(1, 257645556), (2, 128822778), (3, 85881852), (4, 64411389), (6, 42940926), (7, 36806508), (9, 28627284), (12, 21470463), (14, 18403254), (18, 14313642), (21, 12268836), (27, 9542428), (28, 9201627), (36, 7156821), (42, 6134418), (54, 4771214), (63, 4089612), (84, 3067209), (108, 2385607), (126, 2044806), (189, 1363204), (252, 1022403), (378, 681602), (756, 340801)]