1223775

素因数分解:

$3^3\times 5^2\times 7^2\times {\mathrm{37}}^1$

素因数の和:70

約数の個数: 72

約数和(自身を含む): 2685840

約数和(自身を除く): 1462065

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 37, 45, 49, 63, 75, 105, 111, 135, 147, 175, 185, 189, 225, 245, 259, 315, 333, 441, 525, 555, 675, 735, 777, 925, 945, 999, 1225, 1295, 1323, 1575, 1665, 1813, 2205, 2331, 2775, 3675, 3885, 4725, 4995, 5439, 6475, 6615, 6993, 8325, 9065, 11025, 11655, 16317, 19425, 24975, 27195, 33075, 34965, 45325, 48951, 58275, 81585, 135975, 174825, 244755, 407925, 1223775]

約数ペア:

[(1, 1223775), (3, 407925), (5, 244755), (7, 174825), (9, 135975), (15, 81585), (21, 58275), (25, 48951), (27, 45325), (35, 34965), (37, 33075), (45, 27195), (49, 24975), (63, 19425), (75, 16317), (105, 11655), (111, 11025), (135, 9065), (147, 8325), (175, 6993), (185, 6615), (189, 6475), (225, 5439), (245, 4995), (259, 4725), (315, 3885), (333, 3675), (441, 2775), (525, 2331), (555, 2205), (675, 1813), (735, 1665), (777, 1575), (925, 1323), (945, 1295), (999, 1225)]