28711215

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2887}}^1$

素因数の和:2928

約数の個数: 48

約数和(自身を含む): 56766528

約数和(自身を除く): 28055313

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 195, 221, 255, 585, 663, 765, 1105, 1989, 2887, 3315, 8661, 9945, 14435, 25983, 37531, 43305, 49079, 112593, 129915, 147237, 187655, 245395, 337779, 441711, 562965, 638027, 736185, 1688895, 1914081, 2208555, 3190135, 5742243, 9570405, 28711215]

約数ペア:

[(1, 28711215), (3, 9570405), (5, 5742243), (9, 3190135), (13, 2208555), (15, 1914081), (17, 1688895), (39, 736185), (45, 638027), (51, 562965), (65, 441711), (85, 337779), (117, 245395), (153, 187655), (195, 147237), (221, 129915), (255, 112593), (585, 49079), (663, 43305), (765, 37531), (1105, 25983), (1989, 14435), (2887, 9945), (3315, 8661)]