1977275665

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{419}}^1\times {\mathrm{467}}^1$

素因数の和:981

約数の個数: 32

約数和(自身を含む): 2490808320

約数和(自身を除く): 513532655

約数列:

[1, 5, 43, 47, 215, 235, 419, 467, 2021, 2095, 2335, 10105, 18017, 19693, 20081, 21949, 90085, 98465, 100405, 109745, 195673, 846799, 943807, 978365, 4233995, 4719035, 8413939, 9196631, 42069695, 45983155, 395455133, 1977275665]

約数ペア:

[(1, 1977275665), (5, 395455133), (43, 45983155), (47, 42069695), (215, 9196631), (235, 8413939), (419, 4719035), (467, 4233995), (2021, 978365), (2095, 943807), (2335, 846799), (10105, 195673), (18017, 109745), (19693, 100405), (20081, 98465), (21949, 90085)]