81413300

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{15361}}^1$

素因数の和:15428

約数の個数: 36

約数和(自身を含む): 180011916

約数和(自身を除く): 98598616

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 212, 265, 530, 1060, 1325, 2650, 5300, 15361, 30722, 61444, 76805, 153610, 307220, 384025, 768050, 814133, 1536100, 1628266, 3256532, 4070665, 8141330, 16282660, 20353325, 40706650, 81413300]

約数ペア:

[(1, 81413300), (2, 40706650), (4, 20353325), (5, 16282660), (10, 8141330), (20, 4070665), (25, 3256532), (50, 1628266), (53, 1536100), (100, 814133), (106, 768050), (212, 384025), (265, 307220), (530, 153610), (1060, 76805), (1325, 61444), (2650, 30722), (5300, 15361)]