28872320

素因数分解:

$2^7\times 5^1\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:445

約数の個数: 64

約数和(自身を含む): 69676200

約数和(自身を除く): 40803880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 197, 229, 320, 394, 458, 640, 788, 916, 985, 1145, 1576, 1832, 1970, 2290, 3152, 3664, 3940, 4580, 6304, 7328, 7880, 9160, 12608, 14656, 15760, 18320, 25216, 29312, 31520, 36640, 45113, 63040, 73280, 90226, 126080, 146560, 180452, 225565, 360904, 451130, 721808, 902260, 1443616, 1804520, 2887232, 3609040, 5774464, 7218080, 14436160, 28872320]

約数ペア:

[(1, 28872320), (2, 14436160), (4, 7218080), (5, 5774464), (8, 3609040), (10, 2887232), (16, 1804520), (20, 1443616), (32, 902260), (40, 721808), (64, 451130), (80, 360904), (128, 225565), (160, 180452), (197, 146560), (229, 126080), (320, 90226), (394, 73280), (458, 63040), (640, 45113), (788, 36640), (916, 31520), (985, 29312), (1145, 25216), (1576, 18320), (1832, 15760), (1970, 14656), (2290, 12608), (3152, 9160), (3664, 7880), (3940, 7328), (4580, 6304)]