19929520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19163}}^1$

素因数の和:19189

約数の個数: 40

約数和(自身を含む): 49903056

約数和(自身を除く): 29973536

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 19163, 38326, 76652, 95815, 153304, 191630, 249119, 306608, 383260, 498238, 766520, 996476, 1245595, 1533040, 1992952, 2491190, 3985904, 4982380, 9964760, 19929520]

約数ペア:

[(1, 19929520), (2, 9964760), (4, 4982380), (5, 3985904), (8, 2491190), (10, 1992952), (13, 1533040), (16, 1245595), (20, 996476), (26, 766520), (40, 498238), (52, 383260), (65, 306608), (80, 249119), (104, 191630), (130, 153304), (208, 95815), (260, 76652), (520, 38326), (1040, 19163)]