154982020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{249971}}^1$

素因数の和:250011

約数の個数: 24

約数和(自身を含む): 335962368

約数和(自身を除く): 180980348

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 249971, 499942, 999884, 1249855, 2499710, 4999420, 7749101, 15498202, 30996404, 38745505, 77491010, 154982020]

約数ペア:

[(1, 154982020), (2, 77491010), (4, 38745505), (5, 30996404), (10, 15498202), (20, 7749101), (31, 4999420), (62, 2499710), (124, 1249855), (155, 999884), (310, 499942), (620, 249971)]