12720928

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:601

約数の個数: 48

約数和(自身を含む): 27760320

約数和(自身を除く): 15039392

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 71, 88, 142, 176, 284, 352, 509, 568, 781, 1018, 1136, 1562, 2036, 2272, 3124, 4072, 5599, 6248, 8144, 11198, 12496, 16288, 22396, 24992, 36139, 44792, 72278, 89584, 144556, 179168, 289112, 397529, 578224, 795058, 1156448, 1590116, 3180232, 6360464, 12720928]

約数ペア:

[(1, 12720928), (2, 6360464), (4, 3180232), (8, 1590116), (11, 1156448), (16, 795058), (22, 578224), (32, 397529), (44, 289112), (71, 179168), (88, 144556), (142, 89584), (176, 72278), (284, 44792), (352, 36139), (509, 24992), (568, 22396), (781, 16288), (1018, 12496), (1136, 11198), (1562, 8144), (2036, 6248), (2272, 5599), (3124, 4072)]