20599420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{359}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 45964800

約数和(自身を除く): 25365380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 151, 190, 302, 359, 380, 604, 718, 755, 1436, 1510, 1795, 2869, 3020, 3590, 5738, 6821, 7180, 11476, 13642, 14345, 27284, 28690, 34105, 54209, 57380, 68210, 108418, 136420, 216836, 271045, 542090, 1029971, 1084180, 2059942, 4119884, 5149855, 10299710, 20599420]

約数ペア:

[(1, 20599420), (2, 10299710), (4, 5149855), (5, 4119884), (10, 2059942), (19, 1084180), (20, 1029971), (38, 542090), (76, 271045), (95, 216836), (151, 136420), (190, 108418), (302, 68210), (359, 57380), (380, 54209), (604, 34105), (718, 28690), (755, 27284), (1436, 14345), (1510, 13642), (1795, 11476), (2869, 7180), (3020, 6821), (3590, 5738)]