20830740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49597}}^1$

素因数の和:49616

約数の個数: 48

約数和(自身を含む): 66659712

約数和(自身を除く): 45828972

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, 49597, 99194, 148791, 198388, 247985, 297582, 347179, 495970, 595164, 694358, 743955, 991940, 1041537, 1388716, 1487910, 1735895, 2083074, 2975820, 3471790, 4166148, 5207685, 6943580, 10415370, 20830740]

約数ペア:

[(1, 20830740), (2, 10415370), (3, 6943580), (4, 5207685), (5, 4166148), (6, 3471790), (7, 2975820), (10, 2083074), (12, 1735895), (14, 1487910), (15, 1388716), (20, 1041537), (21, 991940), (28, 743955), (30, 694358), (35, 595164), (42, 495970), (60, 347179), (70, 297582), (84, 247985), (105, 198388), (140, 148791), (210, 99194), (420, 49597)]