253640940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{603907}}^1$

素因数の和:603926

約数の個数: 48

約数和(自身を含む): 811652352

約数和(自身を除く): 558011412

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 603907, 1207814, 1811721, 2415628, 3019535, 3623442, 4227349, 6039070, 7246884, 8454698, 9058605, 12078140, 12682047, 16909396, 18117210, 21136745, 25364094, 36234420, 42273490, 50728188, 63410235, 84546980, 126820470, 253640940]

約数ペア:

[(1, 253640940), (2, 126820470), (3, 84546980), (4, 63410235), (5, 50728188), (6, 42273490), (7, 36234420), (10, 25364094), (12, 21136745), (14, 18117210), (15, 16909396), (20, 12682047), (21, 12078140), (28, 9058605), (30, 8454698), (35, 7246884), (42, 6039070), (60, 4227349), (70, 3623442), (84, 3019535), (105, 2415628), (140, 1811721), (210, 1207814), (420, 603907)]