990328678400

素因数分解:

$2^{11}\times 5^2\times {\mathrm{31}}^1\times {\mathrm{623947}}^1$

素因数の和:624010

約数の個数: 144

約数和(自身を含む): 2534626523520

約数和(自身を除く): 1544297845120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 128, 155, 160, 200, 248, 256, 310, 320, 400, 496, 512, 620, 640, 775, 800, 992, 1024, 1240, 1280, 1550, 1600, 1984, 2048, 2480, 2560, 3100, 3200, 3968, 4960, 5120, 6200, 6400, 7936, 9920, 10240, 12400, 12800, 15872, 19840, 24800, 25600, 31744, 39680, 49600, 51200, 63488, 79360, 99200, 158720, 198400, 317440, 396800, 623947, 793600, 1247894, 1587200, 2495788, 3119735, 4991576, 6239470, 9983152, 12478940, 15598675, 19342357, 19966304, 24957880, 31197350, 38684714, 39932608, 49915760, 62394700, 77369428, 79865216, 96711785, 99831520, 124789400, 154738856, 159730432, 193423570, 199663040, 249578800, 309477712, 319460864, 386847140, 399326080, 483558925, 499157600, 618955424, 638921728, 773694280, 798652160, 967117850, 998315200, 1237910848, 1277843456, 1547388560, 1597304320, 1934235700, 1996630400, 2475821696, 3094777120, 3194608640, 3868471400, 3993260800, 4951643392, 6189554240, 6389217280, 7736942800, 7986521600, 9903286784, 12379108480, 15473885600, 15973043200, 19806573568, 24758216960, 30947771200, 31946086400, 39613147136, 49516433920, 61895542400, 99032867840, 123791084800, 198065735680, 247582169600, 495164339200, 990328678400]

約数ペア:

[(1, 990328678400), (2, 495164339200), (4, 247582169600), (5, 198065735680), (8, 123791084800), (10, 99032867840), (16, 61895542400), (20, 49516433920), (25, 39613147136), (31, 31946086400), (32, 30947771200), (40, 24758216960), (50, 19806573568), (62, 15973043200), (64, 15473885600), (80, 12379108480), (100, 9903286784), (124, 7986521600), (128, 7736942800), (155, 6389217280), (160, 6189554240), (200, 4951643392), (248, 3993260800), (256, 3868471400), (310, 3194608640), (320, 3094777120), (400, 2475821696), (496, 1996630400), (512, 1934235700), (620, 1597304320), (640, 1547388560), (775, 1277843456), (800, 1237910848), (992, 998315200), (1024, 967117850), (1240, 798652160), (1280, 773694280), (1550, 638921728), (1600, 618955424), (1984, 499157600), (2048, 483558925), (2480, 399326080), (2560, 386847140), (3100, 319460864), (3200, 309477712), (3968, 249578800), (4960, 199663040), (5120, 193423570), (6200, 159730432), (6400, 154738856), (7936, 124789400), (9920, 99831520), (10240, 96711785), (12400, 79865216), (12800, 77369428), (15872, 62394700), (19840, 49915760), (24800, 39932608), (25600, 38684714), (31744, 31197350), (39680, 24957880), (49600, 19966304), (51200, 19342357), (63488, 15598675), (79360, 12478940), (99200, 9983152), (158720, 6239470), (198400, 4991576), (317440, 3119735), (396800, 2495788), (623947, 1587200), (793600, 1247894)]