128723750

素因数分解:

$2^1\times 5^4\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:171

約数の個数: 80

約数和(自身を含む): 258104880

約数和(自身を除く): 129381130

約数列:

[1, 2, 5, 10, 25, 29, 50, 53, 58, 67, 106, 125, 134, 145, 250, 265, 290, 335, 530, 625, 670, 725, 1250, 1325, 1450, 1537, 1675, 1943, 2650, 3074, 3350, 3551, 3625, 3886, 6625, 7102, 7250, 7685, 8375, 9715, 13250, 15370, 16750, 17755, 18125, 19430, 33125, 35510, 36250, 38425, 41875, 48575, 66250, 76850, 83750, 88775, 97150, 102979, 177550, 192125, 205958, 242875, 384250, 443875, 485750, 514895, 887750, 960625, 1029790, 1214375, 1921250, 2219375, 2428750, 2574475, 4438750, 5148950, 12872375, 25744750, 64361875, 128723750]

約数ペア:

[(1, 128723750), (2, 64361875), (5, 25744750), (10, 12872375), (25, 5148950), (29, 4438750), (50, 2574475), (53, 2428750), (58, 2219375), (67, 1921250), (106, 1214375), (125, 1029790), (134, 960625), (145, 887750), (250, 514895), (265, 485750), (290, 443875), (335, 384250), (530, 242875), (625, 205958), (670, 192125), (725, 177550), (1250, 102979), (1325, 97150), (1450, 88775), (1537, 83750), (1675, 76850), (1943, 66250), (2650, 48575), (3074, 41875), (3350, 38425), (3551, 36250), (3625, 35510), (3886, 33125), (6625, 19430), (7102, 18125), (7250, 17755), (7685, 16750), (8375, 15370), (9715, 13250)]