128110760

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1\times {\mathrm{353}}^1$

素因数の和:618

約数の個数: 64

約数和(自身を含む): 297190080

約数和(自身を除く): 169079320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 211, 215, 344, 353, 422, 430, 706, 844, 860, 1055, 1412, 1688, 1720, 1765, 2110, 2824, 3530, 4220, 7060, 8440, 9073, 14120, 15179, 18146, 30358, 36292, 45365, 60716, 72584, 74483, 75895, 90730, 121432, 148966, 151790, 181460, 297932, 303580, 362920, 372415, 595864, 607160, 744830, 1489660, 2979320, 3202769, 6405538, 12811076, 16013845, 25622152, 32027690, 64055380, 128110760]

約数ペア:

[(1, 128110760), (2, 64055380), (4, 32027690), (5, 25622152), (8, 16013845), (10, 12811076), (20, 6405538), (40, 3202769), (43, 2979320), (86, 1489660), (172, 744830), (211, 607160), (215, 595864), (344, 372415), (353, 362920), (422, 303580), (430, 297932), (706, 181460), (844, 151790), (860, 148966), (1055, 121432), (1412, 90730), (1688, 75895), (1720, 74483), (1765, 72584), (2110, 60716), (2824, 45365), (3530, 36292), (4220, 30358), (7060, 18146), (8440, 15179), (9073, 14120)]