6565000

素因数分解:

$2^3\times 5^4\times {\mathrm{13}}^1\times {\mathrm{101}}^1$

素因数の和:140

約数の個数: 80

約数和(自身を含む): 16729020

約数和(自身を除く): 10164020

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 101, 104, 125, 130, 200, 202, 250, 260, 325, 404, 500, 505, 520, 625, 650, 808, 1000, 1010, 1250, 1300, 1313, 1625, 2020, 2500, 2525, 2600, 2626, 3250, 4040, 5000, 5050, 5252, 6500, 6565, 8125, 10100, 10504, 12625, 13000, 13130, 16250, 20200, 25250, 26260, 32500, 32825, 50500, 52520, 63125, 65000, 65650, 101000, 126250, 131300, 164125, 252500, 262600, 328250, 505000, 656500, 820625, 1313000, 1641250, 3282500, 6565000]

約数ペア:

[(1, 6565000), (2, 3282500), (4, 1641250), (5, 1313000), (8, 820625), (10, 656500), (13, 505000), (20, 328250), (25, 262600), (26, 252500), (40, 164125), (50, 131300), (52, 126250), (65, 101000), (100, 65650), (101, 65000), (104, 63125), (125, 52520), (130, 50500), (200, 32825), (202, 32500), (250, 26260), (260, 25250), (325, 20200), (404, 16250), (500, 13130), (505, 13000), (520, 12625), (625, 10504), (650, 10100), (808, 8125), (1000, 6565), (1010, 6500), (1250, 5252), (1300, 5050), (1313, 5000), (1625, 4040), (2020, 3250), (2500, 2626), (2525, 2600)]