78839720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{48073}}^1$

素因数の和:48125

約数の個数: 32

約数和(自身を含む): 181719720

約数和(自身を除く): 102880000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 48073, 96146, 192292, 240365, 384584, 480730, 961460, 1922920, 1970993, 3941986, 7883972, 9854965, 15767944, 19709930, 39419860, 78839720]

約数ペア:

[(1, 78839720), (2, 39419860), (4, 19709930), (5, 15767944), (8, 9854965), (10, 7883972), (20, 3941986), (40, 1970993), (41, 1922920), (82, 961460), (164, 480730), (205, 384584), (328, 240365), (410, 192292), (820, 96146), (1640, 48073)]