77897360

素因数分解:

$2^4\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1913}}^1$

素因数の和:2435

約数の個数: 40

約数和(自身を含む): 181562040

約数和(自身を除く): 103664680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 509, 1018, 1913, 2036, 2545, 3826, 4072, 5090, 7652, 8144, 9565, 10180, 15304, 19130, 20360, 30608, 38260, 40720, 76520, 153040, 973717, 1947434, 3894868, 4868585, 7789736, 9737170, 15579472, 19474340, 38948680, 77897360]

約数ペア:

[(1, 77897360), (2, 38948680), (4, 19474340), (5, 15579472), (8, 9737170), (10, 7789736), (16, 4868585), (20, 3894868), (40, 1947434), (80, 973717), (509, 153040), (1018, 76520), (1913, 40720), (2036, 38260), (2545, 30608), (3826, 20360), (4072, 19130), (5090, 15304), (7652, 10180), (8144, 9565)]