84640120

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{7639}}^1$

素因数の和:7927

約数の個数: 32

約数和(自身を含む): 191152800

約数和(自身を除く): 106512680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 2216, 2770, 5540, 7639, 11080, 15278, 30556, 38195, 61112, 76390, 152780, 305560, 2116003, 4232006, 8464012, 10580015, 16928024, 21160030, 42320060, 84640120]

約数ペア:

[(1, 84640120), (2, 42320060), (4, 21160030), (5, 16928024), (8, 10580015), (10, 8464012), (20, 4232006), (40, 2116003), (277, 305560), (554, 152780), (1108, 76390), (1385, 61112), (2216, 38195), (2770, 30556), (5540, 15278), (7639, 11080)]