81690876

素因数分解:

$2^2\times 3^3\times {\mathrm{439}}^1\times {\mathrm{1723}}^1$

素因数の和:2175

約数の個数: 48

約数和(自身を含む): 212396800

約数和(自身を除く): 130705924

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 439, 878, 1317, 1723, 1756, 2634, 3446, 3951, 5169, 5268, 6892, 7902, 10338, 11853, 15507, 15804, 20676, 23706, 31014, 46521, 47412, 62028, 93042, 186084, 756397, 1512794, 2269191, 3025588, 4538382, 6807573, 9076764, 13615146, 20422719, 27230292, 40845438, 81690876]

約数ペア:

[(1, 81690876), (2, 40845438), (3, 27230292), (4, 20422719), (6, 13615146), (9, 9076764), (12, 6807573), (18, 4538382), (27, 3025588), (36, 2269191), (54, 1512794), (108, 756397), (439, 186084), (878, 93042), (1317, 62028), (1723, 47412), (1756, 46521), (2634, 31014), (3446, 23706), (3951, 20676), (5169, 15804), (5268, 15507), (6892, 11853), (7902, 10338)]