13315820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{419}}^1$

素因数の和:662

約数の個数: 48

約数和(自身を含む): 32175360

約数和(自身を除く): 18859540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 227, 419, 454, 838, 908, 1135, 1589, 1676, 2095, 2270, 2933, 3178, 4190, 4540, 5866, 6356, 7945, 8380, 11732, 14665, 15890, 29330, 31780, 58660, 95113, 190226, 380452, 475565, 665791, 951130, 1331582, 1902260, 2663164, 3328955, 6657910, 13315820]

約数ペア:

[(1, 13315820), (2, 6657910), (4, 3328955), (5, 2663164), (7, 1902260), (10, 1331582), (14, 951130), (20, 665791), (28, 475565), (35, 380452), (70, 190226), (140, 95113), (227, 58660), (419, 31780), (454, 29330), (838, 15890), (908, 14665), (1135, 11732), (1589, 8380), (1676, 7945), (2095, 6356), (2270, 5866), (2933, 4540), (3178, 4190)]