3999100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:247

約数の個数: 72

約数和(自身を含む): 10311840

約数和(自身を除く): 6312740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 29, 35, 50, 58, 70, 100, 116, 140, 145, 175, 197, 203, 290, 350, 394, 406, 580, 700, 725, 788, 812, 985, 1015, 1379, 1450, 1970, 2030, 2758, 2900, 3940, 4060, 4925, 5075, 5516, 5713, 6895, 9850, 10150, 11426, 13790, 19700, 20300, 22852, 27580, 28565, 34475, 39991, 57130, 68950, 79982, 114260, 137900, 142825, 159964, 199955, 285650, 399910, 571300, 799820, 999775, 1999550, 3999100]

約数ペア:

[(1, 3999100), (2, 1999550), (4, 999775), (5, 799820), (7, 571300), (10, 399910), (14, 285650), (20, 199955), (25, 159964), (28, 142825), (29, 137900), (35, 114260), (50, 79982), (58, 68950), (70, 57130), (100, 39991), (116, 34475), (140, 28565), (145, 27580), (175, 22852), (197, 20300), (203, 19700), (290, 13790), (350, 11426), (394, 10150), (406, 9850), (580, 6895), (700, 5713), (725, 5516), (788, 5075), (812, 4925), (985, 4060), (1015, 3940), (1379, 2900), (1450, 2758), (1970, 2030)]