8120000

素因数分解:

$2^6\times 5^4\times 7^1\times {\mathrm{29}}^1$

素因数の和:68

約数の個数: 140

約数和(自身を含む): 23804880

約数和(自身を除く): 15684880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 29, 32, 35, 40, 50, 56, 58, 64, 70, 80, 100, 112, 116, 125, 140, 145, 160, 175, 200, 203, 224, 232, 250, 280, 290, 320, 350, 400, 406, 448, 464, 500, 560, 580, 625, 700, 725, 800, 812, 875, 928, 1000, 1015, 1120, 1160, 1250, 1400, 1450, 1600, 1624, 1750, 1856, 2000, 2030, 2240, 2320, 2500, 2800, 2900, 3248, 3500, 3625, 4000, 4060, 4375, 4640, 5000, 5075, 5600, 5800, 6496, 7000, 7250, 8000, 8120, 8750, 9280, 10000, 10150, 11200, 11600, 12992, 14000, 14500, 16240, 17500, 18125, 20000, 20300, 23200, 25375, 28000, 29000, 32480, 35000, 36250, 40000, 40600, 46400, 50750, 56000, 58000, 64960, 70000, 72500, 81200, 101500, 116000, 126875, 140000, 145000, 162400, 203000, 232000, 253750, 280000, 290000, 324800, 406000, 507500, 580000, 812000, 1015000, 1160000, 1624000, 2030000, 4060000, 8120000]

約数ペア:

[(1, 8120000), (2, 4060000), (4, 2030000), (5, 1624000), (7, 1160000), (8, 1015000), (10, 812000), (14, 580000), (16, 507500), (20, 406000), (25, 324800), (28, 290000), (29, 280000), (32, 253750), (35, 232000), (40, 203000), (50, 162400), (56, 145000), (58, 140000), (64, 126875), (70, 116000), (80, 101500), (100, 81200), (112, 72500), (116, 70000), (125, 64960), (140, 58000), (145, 56000), (160, 50750), (175, 46400), (200, 40600), (203, 40000), (224, 36250), (232, 35000), (250, 32480), (280, 29000), (290, 28000), (320, 25375), (350, 23200), (400, 20300), (406, 20000), (448, 18125), (464, 17500), (500, 16240), (560, 14500), (580, 14000), (625, 12992), (700, 11600), (725, 11200), (800, 10150), (812, 10000), (875, 9280), (928, 8750), (1000, 8120), (1015, 8000), (1120, 7250), (1160, 7000), (1250, 6496), (1400, 5800), (1450, 5600), (1600, 5075), (1624, 5000), (1750, 4640), (1856, 4375), (2000, 4060), (2030, 4000), (2240, 3625), (2320, 3500), (2500, 3248), (2800, 2900)]