179221040

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1$

素因数の和:450

約数の個数: 80

約数和(自身を含む): 427472640

約数和(自身を除く): 248251600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 139, 142, 227, 278, 284, 355, 454, 556, 568, 695, 710, 908, 1112, 1135, 1136, 1390, 1420, 1816, 2224, 2270, 2780, 2840, 3632, 4540, 5560, 5680, 9080, 9869, 11120, 16117, 18160, 19738, 31553, 32234, 39476, 49345, 63106, 64468, 78952, 80585, 98690, 126212, 128936, 157765, 157904, 161170, 197380, 252424, 257872, 315530, 322340, 394760, 504848, 631060, 644680, 789520, 1262120, 1289360, 2240263, 2524240, 4480526, 8961052, 11201315, 17922104, 22402630, 35844208, 44805260, 89610520, 179221040]

約数ペア:

[(1, 179221040), (2, 89610520), (4, 44805260), (5, 35844208), (8, 22402630), (10, 17922104), (16, 11201315), (20, 8961052), (40, 4480526), (71, 2524240), (80, 2240263), (139, 1289360), (142, 1262120), (227, 789520), (278, 644680), (284, 631060), (355, 504848), (454, 394760), (556, 322340), (568, 315530), (695, 257872), (710, 252424), (908, 197380), (1112, 161170), (1135, 157904), (1136, 157765), (1390, 128936), (1420, 126212), (1816, 98690), (2224, 80585), (2270, 78952), (2780, 64468), (2840, 63106), (3632, 49345), (4540, 39476), (5560, 32234), (5680, 31553), (9080, 19738), (9869, 18160), (11120, 16117)]