28722320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:408

約数の個数: 80

約数和(自身を含む): 73709568

約数和(自身を除く): 44987248

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 127, 176, 220, 254, 257, 440, 508, 514, 635, 880, 1016, 1028, 1270, 1285, 1397, 2032, 2056, 2540, 2570, 2794, 2827, 4112, 5080, 5140, 5588, 5654, 6985, 10160, 10280, 11176, 11308, 13970, 14135, 20560, 22352, 22616, 27940, 28270, 32639, 45232, 55880, 56540, 65278, 111760, 113080, 130556, 163195, 226160, 261112, 326390, 359029, 522224, 652780, 718058, 1305560, 1436116, 1795145, 2611120, 2872232, 3590290, 5744464, 7180580, 14361160, 28722320]

約数ペア:

[(1, 28722320), (2, 14361160), (4, 7180580), (5, 5744464), (8, 3590290), (10, 2872232), (11, 2611120), (16, 1795145), (20, 1436116), (22, 1305560), (40, 718058), (44, 652780), (55, 522224), (80, 359029), (88, 326390), (110, 261112), (127, 226160), (176, 163195), (220, 130556), (254, 113080), (257, 111760), (440, 65278), (508, 56540), (514, 55880), (635, 45232), (880, 32639), (1016, 28270), (1028, 27940), (1270, 22616), (1285, 22352), (1397, 20560), (2032, 14135), (2056, 13970), (2540, 11308), (2570, 11176), (2794, 10280), (2827, 10160), (4112, 6985), (5080, 5654), (5140, 5588)]