221324720

素因数分解:

$2^4\times 5^1\times {\mathrm{953}}^1\times {\mathrm{2903}}^1$

素因数の和:3869

約数の個数: 40

約数和(自身を含む): 515297376

約数和(自身を除く): 293972656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 953, 1906, 2903, 3812, 4765, 5806, 7624, 9530, 11612, 14515, 15248, 19060, 23224, 29030, 38120, 46448, 58060, 76240, 116120, 232240, 2766559, 5533118, 11066236, 13832795, 22132472, 27665590, 44264944, 55331180, 110662360, 221324720]

約数ペア:

[(1, 221324720), (2, 110662360), (4, 55331180), (5, 44264944), (8, 27665590), (10, 22132472), (16, 13832795), (20, 11066236), (40, 5533118), (80, 2766559), (953, 232240), (1906, 116120), (2903, 76240), (3812, 58060), (4765, 46448), (5806, 38120), (7624, 29030), (9530, 23224), (11612, 19060), (14515, 15248)]