20199333850

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{439}}^1\times {\mathrm{21401}}^1$

素因数の和:21895

約数の個数: 48

約数和(自身を含む): 38533872960

約数和(自身を除く): 18334539110

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 430, 439, 878, 1075, 2150, 2195, 4390, 10975, 18877, 21401, 21950, 37754, 42802, 94385, 107005, 188770, 214010, 471925, 535025, 920243, 943850, 1070050, 1840486, 4601215, 9202430, 9395039, 18790078, 23006075, 46012150, 46975195, 93950390, 234875975, 403986677, 469751950, 807973354, 2019933385, 4039866770, 10099666925, 20199333850]

約数ペア:

[(1, 20199333850), (2, 10099666925), (5, 4039866770), (10, 2019933385), (25, 807973354), (43, 469751950), (50, 403986677), (86, 234875975), (215, 93950390), (430, 46975195), (439, 46012150), (878, 23006075), (1075, 18790078), (2150, 9395039), (2195, 9202430), (4390, 4601215), (10975, 1840486), (18877, 1070050), (21401, 943850), (21950, 920243), (37754, 535025), (42802, 471925), (94385, 214010), (107005, 188770)]