17921960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{64007}}^1$

素因数の和:64025

約数の個数: 32

約数和(自身を含む): 46085760

約数和(自身を除く): 28163800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 64007, 128014, 256028, 320035, 448049, 512056, 640070, 896098, 1280140, 1792196, 2240245, 2560280, 3584392, 4480490, 8960980, 17921960]

約数ペア:

[(1, 17921960), (2, 8960980), (4, 4480490), (5, 3584392), (7, 2560280), (8, 2240245), (10, 1792196), (14, 1280140), (20, 896098), (28, 640070), (35, 512056), (40, 448049), (56, 320035), (70, 256028), (140, 128014), (280, 64007)]