650240000

素因数分解:

$2^{13}\times 5^4\times {\mathrm{127}}^1$

素因数の和:173

約数の個数: 140

約数和(自身を含む): 1637775744

約数和(自身を除く): 987535744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 127, 128, 160, 200, 250, 254, 256, 320, 400, 500, 508, 512, 625, 635, 640, 800, 1000, 1016, 1024, 1250, 1270, 1280, 1600, 2000, 2032, 2048, 2500, 2540, 2560, 3175, 3200, 4000, 4064, 4096, 5000, 5080, 5120, 6350, 6400, 8000, 8128, 8192, 10000, 10160, 10240, 12700, 12800, 15875, 16000, 16256, 20000, 20320, 20480, 25400, 25600, 31750, 32000, 32512, 40000, 40640, 40960, 50800, 51200, 63500, 64000, 65024, 79375, 80000, 81280, 101600, 102400, 127000, 128000, 130048, 158750, 160000, 162560, 203200, 204800, 254000, 256000, 260096, 317500, 320000, 325120, 406400, 508000, 512000, 520192, 635000, 640000, 650240, 812800, 1016000, 1024000, 1040384, 1270000, 1280000, 1300480, 1625600, 2032000, 2540000, 2560000, 2600960, 3251200, 4064000, 5080000, 5120000, 5201920, 6502400, 8128000, 10160000, 13004800, 16256000, 20320000, 26009600, 32512000, 40640000, 65024000, 81280000, 130048000, 162560000, 325120000, 650240000]

約数ペア:

[(1, 650240000), (2, 325120000), (4, 162560000), (5, 130048000), (8, 81280000), (10, 65024000), (16, 40640000), (20, 32512000), (25, 26009600), (32, 20320000), (40, 16256000), (50, 13004800), (64, 10160000), (80, 8128000), (100, 6502400), (125, 5201920), (127, 5120000), (128, 5080000), (160, 4064000), (200, 3251200), (250, 2600960), (254, 2560000), (256, 2540000), (320, 2032000), (400, 1625600), (500, 1300480), (508, 1280000), (512, 1270000), (625, 1040384), (635, 1024000), (640, 1016000), (800, 812800), (1000, 650240), (1016, 640000), (1024, 635000), (1250, 520192), (1270, 512000), (1280, 508000), (1600, 406400), (2000, 325120), (2032, 320000), (2048, 317500), (2500, 260096), (2540, 256000), (2560, 254000), (3175, 204800), (3200, 203200), (4000, 162560), (4064, 160000), (4096, 158750), (5000, 130048), (5080, 128000), (5120, 127000), (6350, 102400), (6400, 101600), (8000, 81280), (8128, 80000), (8192, 79375), (10000, 65024), (10160, 64000), (10240, 63500), (12700, 51200), (12800, 50800), (15875, 40960), (16000, 40640), (16256, 40000), (20000, 32512), (20320, 32000), (20480, 31750), (25400, 25600)]