208728900

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{73}}^1\times {\mathrm{353}}^1$

素因数の和:452

約数の個数: 180

約数和(自身を含む): 687828372

約数和(自身を除く): 479099472

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 73, 75, 81, 90, 100, 108, 135, 146, 150, 162, 180, 219, 225, 270, 292, 300, 324, 353, 365, 405, 438, 450, 540, 657, 675, 706, 730, 810, 876, 900, 1059, 1095, 1314, 1350, 1412, 1460, 1620, 1765, 1825, 1971, 2025, 2118, 2190, 2628, 2700, 3177, 3285, 3530, 3650, 3942, 4050, 4236, 4380, 5295, 5475, 5913, 6354, 6570, 7060, 7300, 7884, 8100, 8825, 9531, 9855, 10590, 10950, 11826, 12708, 13140, 15885, 16425, 17650, 19062, 19710, 21180, 21900, 23652, 25769, 26475, 28593, 29565, 31770, 32850, 35300, 38124, 39420, 47655, 49275, 51538, 52950, 57186, 59130, 63540, 65700, 77307, 79425, 95310, 98550, 103076, 105900, 114372, 118260, 128845, 142965, 147825, 154614, 158850, 190620, 197100, 231921, 238275, 257690, 285930, 295650, 309228, 317700, 386535, 463842, 476550, 515380, 571860, 591300, 644225, 695763, 714825, 773070, 927684, 953100, 1159605, 1288450, 1391526, 1429650, 1546140, 1932675, 2087289, 2319210, 2576900, 2783052, 2859300, 3478815, 3865350, 4174578, 4638420, 5798025, 6957630, 7730700, 8349156, 10436445, 11596050, 13915260, 17394075, 20872890, 23192100, 34788150, 41745780, 52182225, 69576300, 104364450, 208728900]

約数ペア:

[(1, 208728900), (2, 104364450), (3, 69576300), (4, 52182225), (5, 41745780), (6, 34788150), (9, 23192100), (10, 20872890), (12, 17394075), (15, 13915260), (18, 11596050), (20, 10436445), (25, 8349156), (27, 7730700), (30, 6957630), (36, 5798025), (45, 4638420), (50, 4174578), (54, 3865350), (60, 3478815), (73, 2859300), (75, 2783052), (81, 2576900), (90, 2319210), (100, 2087289), (108, 1932675), (135, 1546140), (146, 1429650), (150, 1391526), (162, 1288450), (180, 1159605), (219, 953100), (225, 927684), (270, 773070), (292, 714825), (300, 695763), (324, 644225), (353, 591300), (365, 571860), (405, 515380), (438, 476550), (450, 463842), (540, 386535), (657, 317700), (675, 309228), (706, 295650), (730, 285930), (810, 257690), (876, 238275), (900, 231921), (1059, 197100), (1095, 190620), (1314, 158850), (1350, 154614), (1412, 147825), (1460, 142965), (1620, 128845), (1765, 118260), (1825, 114372), (1971, 105900), (2025, 103076), (2118, 98550), (2190, 95310), (2628, 79425), (2700, 77307), (3177, 65700), (3285, 63540), (3530, 59130), (3650, 57186), (3942, 52950), (4050, 51538), (4236, 49275), (4380, 47655), (5295, 39420), (5475, 38124), (5913, 35300), (6354, 32850), (6570, 31770), (7060, 29565), (7300, 28593), (7884, 26475), (8100, 25769), (8825, 23652), (9531, 21900), (9855, 21180), (10590, 19710), (10950, 19062), (11826, 17650), (12708, 16425), (13140, 15885)]