20797860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1381}}^1$

素因数の和:1644

約数の個数: 48

約数和(自身を含む): 58508352

約数和(自身を除く): 37710492

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 251, 502, 753, 1004, 1255, 1381, 1506, 2510, 2762, 3012, 3765, 4143, 5020, 5524, 6905, 7530, 8286, 13810, 15060, 16572, 20715, 27620, 41430, 82860, 346631, 693262, 1039893, 1386524, 1733155, 2079786, 3466310, 4159572, 5199465, 6932620, 10398930, 20797860]

約数ペア:

[(1, 20797860), (2, 10398930), (3, 6932620), (4, 5199465), (5, 4159572), (6, 3466310), (10, 2079786), (12, 1733155), (15, 1386524), (20, 1039893), (30, 693262), (60, 346631), (251, 82860), (502, 41430), (753, 27620), (1004, 20715), (1255, 16572), (1381, 15060), (1506, 13810), (2510, 8286), (2762, 7530), (3012, 6905), (3765, 5524), (4143, 5020)]