65000

素因数分解:

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

素因数の和:39

約数の個数: 40

約数和(自身を含む): 164010

約数和(自身を除く): 99010

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 500, 520, 625, 650, 1000, 1250, 1300, 1625, 2500, 2600, 3250, 5000, 6500, 8125, 13000, 16250, 32500, 65000]

約数ペア:

[(1, 65000), (2, 32500), (4, 16250), (5, 13000), (8, 8125), (10, 6500), (13, 5000), (20, 3250), (25, 2600), (26, 2500), (40, 1625), (50, 1300), (52, 1250), (65, 1000), (100, 650), (104, 625), (125, 520), (130, 500), (200, 325), (250, 260)]