81694480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1291}}^1$

素因数の和:1424

約数の個数: 80

約数和(自身を含む): 219164544

約数和(自身を除く): 137470064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 113, 140, 226, 280, 452, 560, 565, 791, 904, 1130, 1291, 1582, 1808, 2260, 2582, 3164, 3955, 4520, 5164, 6328, 6455, 7910, 9037, 9040, 10328, 12656, 12910, 15820, 18074, 20656, 25820, 31640, 36148, 45185, 51640, 63280, 72296, 90370, 103280, 144592, 145883, 180740, 291766, 361480, 583532, 722960, 729415, 1021181, 1167064, 1458830, 2042362, 2334128, 2917660, 4084724, 5105905, 5835320, 8169448, 10211810, 11670640, 16338896, 20423620, 40847240, 81694480]

約数ペア:

[(1, 81694480), (2, 40847240), (4, 20423620), (5, 16338896), (7, 11670640), (8, 10211810), (10, 8169448), (14, 5835320), (16, 5105905), (20, 4084724), (28, 2917660), (35, 2334128), (40, 2042362), (56, 1458830), (70, 1167064), (80, 1021181), (112, 729415), (113, 722960), (140, 583532), (226, 361480), (280, 291766), (452, 180740), (560, 145883), (565, 144592), (791, 103280), (904, 90370), (1130, 72296), (1291, 63280), (1582, 51640), (1808, 45185), (2260, 36148), (2582, 31640), (3164, 25820), (3955, 20656), (4520, 18074), (5164, 15820), (6328, 12910), (6455, 12656), (7910, 10328), (9037, 9040)]