25640505

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{277}}^1$

素因数の和:327

約数の個数: 72

約数和(自身を含む): 51911496

約数和(自身を除く): 26270991

約数列:

[1, 3, 5, 9, 11, 15, 17, 33, 45, 51, 55, 85, 99, 121, 153, 165, 187, 255, 277, 363, 495, 561, 605, 765, 831, 935, 1089, 1385, 1683, 1815, 2057, 2493, 2805, 3047, 4155, 4709, 5445, 6171, 8415, 9141, 10285, 12465, 14127, 15235, 18513, 23545, 27423, 30855, 33517, 42381, 45705, 51799, 70635, 92565, 100551, 137115, 155397, 167585, 211905, 258995, 301653, 466191, 502755, 569789, 776985, 1508265, 1709367, 2330955, 2848945, 5128101, 8546835, 25640505]

約数ペア:

[(1, 25640505), (3, 8546835), (5, 5128101), (9, 2848945), (11, 2330955), (15, 1709367), (17, 1508265), (33, 776985), (45, 569789), (51, 502755), (55, 466191), (85, 301653), (99, 258995), (121, 211905), (153, 167585), (165, 155397), (187, 137115), (255, 100551), (277, 92565), (363, 70635), (495, 51799), (561, 45705), (605, 42381), (765, 33517), (831, 30855), (935, 27423), (1089, 23545), (1385, 18513), (1683, 15235), (1815, 14127), (2057, 12465), (2493, 10285), (2805, 9141), (3047, 8415), (4155, 6171), (4709, 5445)]