16890780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1429}}^1$

素因数の和:1638

約数の個数: 48

約数和(自身を含む): 47567520

約数和(自身を除く): 30676740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 197, 394, 591, 788, 985, 1182, 1429, 1970, 2364, 2858, 2955, 3940, 4287, 5716, 5910, 7145, 8574, 11820, 14290, 17148, 21435, 28580, 42870, 85740, 281513, 563026, 844539, 1126052, 1407565, 1689078, 2815130, 3378156, 4222695, 5630260, 8445390, 16890780]

約数ペア:

[(1, 16890780), (2, 8445390), (3, 5630260), (4, 4222695), (5, 3378156), (6, 2815130), (10, 1689078), (12, 1407565), (15, 1126052), (20, 844539), (30, 563026), (60, 281513), (197, 85740), (394, 42870), (591, 28580), (788, 21435), (985, 17148), (1182, 14290), (1429, 11820), (1970, 8574), (2364, 7145), (2858, 5910), (2955, 5716), (3940, 4287)]