28385665

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4337}}^1$

素因数の和:4377

約数の個数: 32

約数和(自身を含む): 44976384

約数和(自身を除く): 16590719

約数列:

[1, 5, 7, 11, 17, 35, 55, 77, 85, 119, 187, 385, 595, 935, 1309, 4337, 6545, 21685, 30359, 47707, 73729, 151795, 238535, 333949, 368645, 516103, 811019, 1669745, 2580515, 4055095, 5677133, 28385665]

約数ペア:

[(1, 28385665), (5, 5677133), (7, 4055095), (11, 2580515), (17, 1669745), (35, 811019), (55, 516103), (77, 368645), (85, 333949), (119, 238535), (187, 151795), (385, 73729), (595, 47707), (935, 30359), (1309, 21685), (4337, 6545)]