249004420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{647}}^1\times {\mathrm{2749}}^1$

素因数の和:3412

約数の個数: 48

約数和(自身を含む): 598752000

約数和(自身を除く): 349747580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 647, 1294, 2588, 2749, 3235, 4529, 5498, 6470, 9058, 10996, 12940, 13745, 18116, 19243, 22645, 27490, 38486, 45290, 54980, 76972, 90580, 96215, 192430, 384860, 1778603, 3557206, 7114412, 8893015, 12450221, 17786030, 24900442, 35572060, 49800884, 62251105, 124502210, 249004420]

約数ペア:

[(1, 249004420), (2, 124502210), (4, 62251105), (5, 49800884), (7, 35572060), (10, 24900442), (14, 17786030), (20, 12450221), (28, 8893015), (35, 7114412), (70, 3557206), (140, 1778603), (647, 384860), (1294, 192430), (2588, 96215), (2749, 90580), (3235, 76972), (4529, 54980), (5498, 45290), (6470, 38486), (9058, 27490), (10996, 22645), (12940, 19243), (13745, 18116)]