20285650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{479}}^1$

素因数の和:520

約数の個数: 72

約数和(自身を含む): 47496960

約数和(自身を除く): 27211310

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 121, 154, 175, 242, 275, 350, 385, 479, 550, 605, 770, 847, 958, 1210, 1694, 1925, 2395, 3025, 3353, 3850, 4235, 4790, 5269, 6050, 6706, 8470, 10538, 11975, 16765, 21175, 23950, 26345, 33530, 36883, 42350, 52690, 57959, 73766, 83825, 115918, 131725, 167650, 184415, 263450, 289795, 368830, 405713, 579590, 811426, 922075, 1448975, 1844150, 2028565, 2897950, 4057130, 10142825, 20285650]

約数ペア:

[(1, 20285650), (2, 10142825), (5, 4057130), (7, 2897950), (10, 2028565), (11, 1844150), (14, 1448975), (22, 922075), (25, 811426), (35, 579590), (50, 405713), (55, 368830), (70, 289795), (77, 263450), (110, 184415), (121, 167650), (154, 131725), (175, 115918), (242, 83825), (275, 73766), (350, 57959), (385, 52690), (479, 42350), (550, 36883), (605, 33530), (770, 26345), (847, 23950), (958, 21175), (1210, 16765), (1694, 11975), (1925, 10538), (2395, 8470), (3025, 6706), (3353, 6050), (3850, 5269), (4235, 4790)]