245381640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{293}}^1\times {\mathrm{997}}^1$

素因数の和:1311

約数の個数: 128

約数和(自身を含む): 845026560

約数和(自身を除く): 599644920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 293, 420, 586, 840, 879, 997, 1172, 1465, 1758, 1994, 2051, 2344, 2930, 2991, 3516, 3988, 4102, 4395, 4985, 5860, 5982, 6153, 6979, 7032, 7976, 8204, 8790, 9970, 10255, 11720, 11964, 12306, 13958, 14955, 16408, 17580, 19940, 20510, 20937, 23928, 24612, 27916, 29910, 30765, 34895, 35160, 39880, 41020, 41874, 49224, 55832, 59820, 61530, 69790, 82040, 83748, 104685, 119640, 123060, 139580, 167496, 209370, 246120, 279160, 292121, 418740, 584242, 837480, 876363, 1168484, 1460605, 1752726, 2044847, 2336968, 2921210, 3505452, 4089694, 4381815, 5842420, 6134541, 7010904, 8179388, 8763630, 10224235, 11684840, 12269082, 16358776, 17527260, 20448470, 24538164, 30672705, 35054520, 40896940, 49076328, 61345410, 81793880, 122690820, 245381640]

約数ペア:

[(1, 245381640), (2, 122690820), (3, 81793880), (4, 61345410), (5, 49076328), (6, 40896940), (7, 35054520), (8, 30672705), (10, 24538164), (12, 20448470), (14, 17527260), (15, 16358776), (20, 12269082), (21, 11684840), (24, 10224235), (28, 8763630), (30, 8179388), (35, 7010904), (40, 6134541), (42, 5842420), (56, 4381815), (60, 4089694), (70, 3505452), (84, 2921210), (105, 2336968), (120, 2044847), (140, 1752726), (168, 1460605), (210, 1168484), (280, 876363), (293, 837480), (420, 584242), (586, 418740), (840, 292121), (879, 279160), (997, 246120), (1172, 209370), (1465, 167496), (1758, 139580), (1994, 123060), (2051, 119640), (2344, 104685), (2930, 83748), (2991, 82040), (3516, 69790), (3988, 61530), (4102, 59820), (4395, 55832), (4985, 49224), (5860, 41874), (5982, 41020), (6153, 39880), (6979, 35160), (7032, 34895), (7976, 30765), (8204, 29910), (8790, 27916), (9970, 24612), (10255, 23928), (11720, 20937), (11964, 20510), (12306, 19940), (13958, 17580), (14955, 16408)]