12439900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:331

約数の個数: 72

約数和(自身を含む): 30248064

約数和(自身を除く): 17808164

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 43, 44, 50, 55, 86, 100, 110, 172, 215, 220, 263, 275, 430, 473, 526, 550, 860, 946, 1052, 1075, 1100, 1315, 1892, 2150, 2365, 2630, 2893, 4300, 4730, 5260, 5786, 6575, 9460, 11309, 11572, 11825, 13150, 14465, 22618, 23650, 26300, 28930, 45236, 47300, 56545, 57860, 72325, 113090, 124399, 144650, 226180, 248798, 282725, 289300, 497596, 565450, 621995, 1130900, 1243990, 2487980, 3109975, 6219950, 12439900]

約数ペア:

[(1, 12439900), (2, 6219950), (4, 3109975), (5, 2487980), (10, 1243990), (11, 1130900), (20, 621995), (22, 565450), (25, 497596), (43, 289300), (44, 282725), (50, 248798), (55, 226180), (86, 144650), (100, 124399), (110, 113090), (172, 72325), (215, 57860), (220, 56545), (263, 47300), (275, 45236), (430, 28930), (473, 26300), (526, 23650), (550, 22618), (860, 14465), (946, 13150), (1052, 11825), (1075, 11572), (1100, 11309), (1315, 9460), (1892, 6575), (2150, 5786), (2365, 5260), (2630, 4730), (2893, 4300)]