65339720

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{6211}}^1$

素因数の和:6485

約数の個数: 32

約数和(自身を含む): 147597120

約数和(自身を除く): 82257400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 5260, 6211, 10520, 12422, 24844, 31055, 49688, 62110, 124220, 248440, 1633493, 3266986, 6533972, 8167465, 13067944, 16334930, 32669860, 65339720]

約数ペア:

[(1, 65339720), (2, 32669860), (4, 16334930), (5, 13067944), (8, 8167465), (10, 6533972), (20, 3266986), (40, 1633493), (263, 248440), (526, 124220), (1052, 62110), (1315, 49688), (2104, 31055), (2630, 24844), (5260, 12422), (6211, 10520)]