6500000

素因数分解:

$2^5\times 5^6\times {\mathrm{13}}^1$

素因数の和:53

約数の個数: 84

約数和(自身を含む): 17226342

約数和(自身を除く): 10726342

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 125, 130, 160, 200, 208, 250, 260, 325, 400, 416, 500, 520, 625, 650, 800, 1000, 1040, 1250, 1300, 1625, 2000, 2080, 2500, 2600, 3125, 3250, 4000, 5000, 5200, 6250, 6500, 8125, 10000, 10400, 12500, 13000, 15625, 16250, 20000, 25000, 26000, 31250, 32500, 40625, 50000, 52000, 62500, 65000, 81250, 100000, 125000, 130000, 162500, 203125, 250000, 260000, 325000, 406250, 500000, 650000, 812500, 1300000, 1625000, 3250000, 6500000]

約数ペア:

[(1, 6500000), (2, 3250000), (4, 1625000), (5, 1300000), (8, 812500), (10, 650000), (13, 500000), (16, 406250), (20, 325000), (25, 260000), (26, 250000), (32, 203125), (40, 162500), (50, 130000), (52, 125000), (65, 100000), (80, 81250), (100, 65000), (104, 62500), (125, 52000), (130, 50000), (160, 40625), (200, 32500), (208, 31250), (250, 26000), (260, 25000), (325, 20000), (400, 16250), (416, 15625), (500, 13000), (520, 12500), (625, 10400), (650, 10000), (800, 8125), (1000, 6500), (1040, 6250), (1250, 5200), (1300, 5000), (1625, 4000), (2000, 3250), (2080, 3125), (2500, 2600)]