21874880

素因数分解:

$2^6\times 5^1\times {\mathrm{197}}^1\times {\mathrm{347}}^1$

素因数の和:561

約数の個数: 56

約数和(自身を含む): 52504848

約数和(自身を除く): 30629968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 197, 320, 347, 394, 694, 788, 985, 1388, 1576, 1735, 1970, 2776, 3152, 3470, 3940, 5552, 6304, 6940, 7880, 11104, 12608, 13880, 15760, 22208, 27760, 31520, 55520, 63040, 68359, 111040, 136718, 273436, 341795, 546872, 683590, 1093744, 1367180, 2187488, 2734360, 4374976, 5468720, 10937440, 21874880]

約数ペア:

[(1, 21874880), (2, 10937440), (4, 5468720), (5, 4374976), (8, 2734360), (10, 2187488), (16, 1367180), (20, 1093744), (32, 683590), (40, 546872), (64, 341795), (80, 273436), (160, 136718), (197, 111040), (320, 68359), (347, 63040), (394, 55520), (694, 31520), (788, 27760), (985, 22208), (1388, 15760), (1576, 13880), (1735, 12608), (1970, 11104), (2776, 7880), (3152, 6940), (3470, 6304), (3940, 5552)]