53181380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19993}}^1$

素因数の和:20028

約数の個数: 48

約数和(自身を含む): 134359680

約数和(自身を除く): 81178300

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 19993, 39986, 79972, 99965, 139951, 199930, 279902, 379867, 399860, 559804, 699755, 759734, 1399510, 1519468, 1899335, 2659069, 2799020, 3798670, 5318138, 7597340, 10636276, 13295345, 26590690, 53181380]

約数ペア:

[(1, 53181380), (2, 26590690), (4, 13295345), (5, 10636276), (7, 7597340), (10, 5318138), (14, 3798670), (19, 2799020), (20, 2659069), (28, 1899335), (35, 1519468), (38, 1399510), (70, 759734), (76, 699755), (95, 559804), (133, 399860), (140, 379867), (190, 279902), (266, 199930), (380, 139951), (532, 99965), (665, 79972), (1330, 39986), (2660, 19993)]