1999550

素因数分解:

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

素因数の和:245

約数の個数: 48

約数和(自身を含む): 4419360

約数和(自身を除く): 2419810

約数列:

[1, 2, 5, 7, 10, 14, 25, 29, 35, 50, 58, 70, 145, 175, 197, 203, 290, 350, 394, 406, 725, 985, 1015, 1379, 1450, 1970, 2030, 2758, 4925, 5075, 5713, 6895, 9850, 10150, 11426, 13790, 28565, 34475, 39991, 57130, 68950, 79982, 142825, 199955, 285650, 399910, 999775, 1999550]

約数ペア:

[(1, 1999550), (2, 999775), (5, 399910), (7, 285650), (10, 199955), (14, 142825), (25, 79982), (29, 68950), (35, 57130), (50, 39991), (58, 34475), (70, 28565), (145, 13790), (175, 11426), (197, 10150), (203, 9850), (290, 6895), (350, 5713), (394, 5075), (406, 4925), (725, 2758), (985, 2030), (1015, 1970), (1379, 1450)]