38948680

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1913}}^1$

素因数の和:2433

約数の個数: 32

約数和(自身を含む): 87852600

約数和(自身を除く): 48903920

約数列:

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

約数ペア:

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