21440320

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6091}}^1$

素因数の和:6119

約数の個数: 56

約数和(自身を含む): 55705248

約数和(自身を除く): 34264928

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 6091, 12182, 24364, 30455, 48728, 60910, 67001, 97456, 121820, 134002, 194912, 243640, 268004, 335005, 389824, 487280, 536008, 670010, 974560, 1072016, 1340020, 1949120, 2144032, 2680040, 4288064, 5360080, 10720160, 21440320]

約数ペア:

[(1, 21440320), (2, 10720160), (4, 5360080), (5, 4288064), (8, 2680040), (10, 2144032), (11, 1949120), (16, 1340020), (20, 1072016), (22, 974560), (32, 670010), (40, 536008), (44, 487280), (55, 389824), (64, 335005), (80, 268004), (88, 243640), (110, 194912), (160, 134002), (176, 121820), (220, 97456), (320, 67001), (352, 60910), (440, 48728), (704, 30455), (880, 24364), (1760, 12182), (3520, 6091)]