1040000

素因数分解:

$2^7\times 5^4\times {\mathrm{13}}^1$

素因数の和:47

約数の個数: 80

約数和(自身を含む): 2788170

約数和(自身を除く): 1748170

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 125, 128, 130, 160, 200, 208, 250, 260, 320, 325, 400, 416, 500, 520, 625, 640, 650, 800, 832, 1000, 1040, 1250, 1300, 1600, 1625, 1664, 2000, 2080, 2500, 2600, 3200, 3250, 4000, 4160, 5000, 5200, 6500, 8000, 8125, 8320, 10000, 10400, 13000, 16000, 16250, 20000, 20800, 26000, 32500, 40000, 41600, 52000, 65000, 80000, 104000, 130000, 208000, 260000, 520000, 1040000]

約数ペア:

[(1, 1040000), (2, 520000), (4, 260000), (5, 208000), (8, 130000), (10, 104000), (13, 80000), (16, 65000), (20, 52000), (25, 41600), (26, 40000), (32, 32500), (40, 26000), (50, 20800), (52, 20000), (64, 16250), (65, 16000), (80, 13000), (100, 10400), (104, 10000), (125, 8320), (128, 8125), (130, 8000), (160, 6500), (200, 5200), (208, 5000), (250, 4160), (260, 4000), (320, 3250), (325, 3200), (400, 2600), (416, 2500), (500, 2080), (520, 2000), (625, 1664), (640, 1625), (650, 1600), (800, 1300), (832, 1250), (1000, 1040)]