164825680

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{16223}}^1$

素因数の和:16363

約数の個数: 40

約数和(自身を含む): 386260992

約数和(自身を除く): 221435312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 10160, 16223, 32446, 64892, 81115, 129784, 162230, 259568, 324460, 648920, 1297840, 2060321, 4120642, 8241284, 10301605, 16482568, 20603210, 32965136, 41206420, 82412840, 164825680]

約数ペア:

[(1, 164825680), (2, 82412840), (4, 41206420), (5, 32965136), (8, 20603210), (10, 16482568), (16, 10301605), (20, 8241284), (40, 4120642), (80, 2060321), (127, 1297840), (254, 648920), (508, 324460), (635, 259568), (1016, 162230), (1270, 129784), (2032, 81115), (2540, 64892), (5080, 32446), (10160, 16223)]