201921290

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{643}}^1\times {\mathrm{1013}}^1$

素因数の和:1694

約数の個数: 32

約数和(自身を含む): 376137216

約数和(自身を除く): 174215926

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 643, 1013, 1286, 2026, 3215, 5065, 6430, 10130, 19933, 31403, 39866, 62806, 99665, 157015, 199330, 314030, 651359, 1302718, 3256795, 6513590, 20192129, 40384258, 100960645, 201921290]

約数ペア:

[(1, 201921290), (2, 100960645), (5, 40384258), (10, 20192129), (31, 6513590), (62, 3256795), (155, 1302718), (310, 651359), (643, 314030), (1013, 199330), (1286, 157015), (2026, 99665), (3215, 62806), (5065, 39866), (6430, 31403), (10130, 19933)]