121216420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{3671}}^1$

素因数の和:3820

約数の個数: 48

約数和(自身を含む): 276369408

約数和(自身を除く): 155152988

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 254, 260, 508, 635, 1270, 1651, 2540, 3302, 3671, 6604, 7342, 8255, 14684, 16510, 18355, 33020, 36710, 47723, 73420, 95446, 190892, 238615, 466217, 477230, 932434, 954460, 1864868, 2331085, 4662170, 6060821, 9324340, 12121642, 24243284, 30304105, 60608210, 121216420]

約数ペア:

[(1, 121216420), (2, 60608210), (4, 30304105), (5, 24243284), (10, 12121642), (13, 9324340), (20, 6060821), (26, 4662170), (52, 2331085), (65, 1864868), (127, 954460), (130, 932434), (254, 477230), (260, 466217), (508, 238615), (635, 190892), (1270, 95446), (1651, 73420), (2540, 47723), (3302, 36710), (3671, 33020), (6604, 18355), (7342, 16510), (8255, 14684)]