123983750

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:231

約数の個数: 80

約数和(自身を含む): 259117056

約数和(自身を除く): 135133306

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 71, 110, 125, 127, 142, 250, 254, 275, 355, 550, 625, 635, 710, 781, 1250, 1270, 1375, 1397, 1562, 1775, 2750, 2794, 3175, 3550, 3905, 6350, 6875, 6985, 7810, 8875, 9017, 13750, 13970, 15875, 17750, 18034, 19525, 31750, 34925, 39050, 44375, 45085, 69850, 79375, 88750, 90170, 97625, 99187, 158750, 174625, 195250, 198374, 225425, 349250, 450850, 488125, 495935, 873125, 976250, 991870, 1127125, 1746250, 2254250, 2479675, 4959350, 5635625, 11271250, 12398375, 24796750, 61991875, 123983750]

約数ペア:

[(1, 123983750), (2, 61991875), (5, 24796750), (10, 12398375), (11, 11271250), (22, 5635625), (25, 4959350), (50, 2479675), (55, 2254250), (71, 1746250), (110, 1127125), (125, 991870), (127, 976250), (142, 873125), (250, 495935), (254, 488125), (275, 450850), (355, 349250), (550, 225425), (625, 198374), (635, 195250), (710, 174625), (781, 158750), (1250, 99187), (1270, 97625), (1375, 90170), (1397, 88750), (1562, 79375), (1775, 69850), (2750, 45085), (2794, 44375), (3175, 39050), (3550, 34925), (3905, 31750), (6350, 19525), (6875, 18034), (6985, 17750), (7810, 15875), (8875, 13970), (9017, 13750)]