10000000

素因数分解:

$2^7\times 5^7$

素因数の和:49

約数の個数: 64

約数和(自身を含む): 24902280

約数和(自身を除く): 14902280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 625, 640, 800, 1000, 1250, 1600, 2000, 2500, 3125, 3200, 4000, 5000, 6250, 8000, 10000, 12500, 15625, 16000, 20000, 25000, 31250, 40000, 50000, 62500, 78125, 80000, 100000, 125000, 156250, 200000, 250000, 312500, 400000, 500000, 625000, 1000000, 1250000, 2000000, 2500000, 5000000, 10000000]

約数ペア:

[(1, 10000000), (2, 5000000), (4, 2500000), (5, 2000000), (8, 1250000), (10, 1000000), (16, 625000), (20, 500000), (25, 400000), (32, 312500), (40, 250000), (50, 200000), (64, 156250), (80, 125000), (100, 100000), (125, 80000), (128, 78125), (160, 62500), (200, 50000), (250, 40000), (320, 31250), (400, 25000), (500, 20000), (625, 16000), (640, 15625), (800, 12500), (1000, 10000), (1250, 8000), (1600, 6250), (2000, 5000), (2500, 4000), (3125, 3200)]