28687505

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{269}}^1\times {\mathrm{277}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 43234560

約数和(自身を除く): 14547055

約数列:

[1, 5, 7, 11, 35, 55, 77, 269, 277, 385, 1345, 1385, 1883, 1939, 2959, 3047, 9415, 9695, 14795, 15235, 20713, 21329, 74513, 103565, 106645, 372565, 521591, 819643, 2607955, 4098215, 5737501, 28687505]

約数ペア:

[(1, 28687505), (5, 5737501), (7, 4098215), (11, 2607955), (35, 819643), (55, 521591), (77, 372565), (269, 106645), (277, 103565), (385, 74513), (1345, 21329), (1385, 20713), (1883, 15235), (1939, 14795), (2959, 9695), (3047, 9415)]