80991927

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:333

約数の個数: 64

約数和(自身を含む): 137894400

約数和(自身を除く): 56902473

約数列:

[1, 3, 9, 17, 19, 27, 37, 51, 57, 111, 153, 171, 251, 323, 333, 459, 513, 629, 703, 753, 969, 999, 1887, 2109, 2259, 2907, 4267, 4769, 5661, 6327, 6777, 8721, 9287, 11951, 12801, 14307, 16983, 18981, 27861, 35853, 38403, 42921, 81073, 83583, 107559, 115209, 128763, 157879, 176453, 243219, 250749, 322677, 473637, 529359, 729657, 1420911, 1588077, 2188971, 2999701, 4262733, 4764231, 8999103, 26997309, 80991927]

約数ペア:

[(1, 80991927), (3, 26997309), (9, 8999103), (17, 4764231), (19, 4262733), (27, 2999701), (37, 2188971), (51, 1588077), (57, 1420911), (111, 729657), (153, 529359), (171, 473637), (251, 322677), (323, 250749), (333, 243219), (459, 176453), (513, 157879), (629, 128763), (703, 115209), (753, 107559), (969, 83583), (999, 81073), (1887, 42921), (2109, 38403), (2259, 35853), (2907, 27861), (4267, 18981), (4769, 16983), (5661, 14307), (6327, 12801), (6777, 11951), (8721, 9287)]