19782700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{479}}^1$

素因数の和:559

約数の個数: 72

約数和(自身を含む): 49996800

約数和(自身を除く): 30214100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 59, 70, 100, 118, 140, 175, 236, 295, 350, 413, 479, 590, 700, 826, 958, 1180, 1475, 1652, 1916, 2065, 2395, 2950, 3353, 4130, 4790, 5900, 6706, 8260, 9580, 10325, 11975, 13412, 16765, 20650, 23950, 28261, 33530, 41300, 47900, 56522, 67060, 83825, 113044, 141305, 167650, 197827, 282610, 335300, 395654, 565220, 706525, 791308, 989135, 1413050, 1978270, 2826100, 3956540, 4945675, 9891350, 19782700]

約数ペア:

[(1, 19782700), (2, 9891350), (4, 4945675), (5, 3956540), (7, 2826100), (10, 1978270), (14, 1413050), (20, 989135), (25, 791308), (28, 706525), (35, 565220), (50, 395654), (59, 335300), (70, 282610), (100, 197827), (118, 167650), (140, 141305), (175, 113044), (236, 83825), (295, 67060), (350, 56522), (413, 47900), (479, 41300), (590, 33530), (700, 28261), (826, 23950), (958, 20650), (1180, 16765), (1475, 13412), (1652, 11975), (1916, 10325), (2065, 9580), (2395, 8260), (2950, 6706), (3353, 5900), (4130, 4790)]