2021027440

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{98299}}^1$

素因数の和:98569

約数の個数: 40

約数和(自身を含む): 4717220400

約数和(自身を除く): 2696192960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 2056, 2570, 4112, 5140, 10280, 20560, 98299, 196598, 393196, 491495, 786392, 982990, 1572784, 1965980, 3931960, 7863920, 25262843, 50525686, 101051372, 126314215, 202102744, 252628430, 404205488, 505256860, 1010513720, 2021027440]

約数ペア:

[(1, 2021027440), (2, 1010513720), (4, 505256860), (5, 404205488), (8, 252628430), (10, 202102744), (16, 126314215), (20, 101051372), (40, 50525686), (80, 25262843), (257, 7863920), (514, 3931960), (1028, 1965980), (1285, 1572784), (2056, 982990), (2570, 786392), (4112, 491495), (5140, 393196), (10280, 196598), (20560, 98299)]