2771780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{293}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 6519744

約数和(自身を除く): 3747964

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 293, 430, 473, 586, 860, 946, 1172, 1465, 1892, 2365, 2930, 3223, 4730, 5860, 6446, 9460, 12599, 12892, 16115, 25198, 32230, 50396, 62995, 64460, 125990, 138589, 251980, 277178, 554356, 692945, 1385890, 2771780]

約数ペア:

[(1, 2771780), (2, 1385890), (4, 692945), (5, 554356), (10, 277178), (11, 251980), (20, 138589), (22, 125990), (43, 64460), (44, 62995), (55, 50396), (86, 32230), (110, 25198), (172, 16115), (215, 12892), (220, 12599), (293, 9460), (430, 6446), (473, 5860), (586, 4730), (860, 3223), (946, 2930), (1172, 2365), (1465, 1892)]