990304000

素因数分解:

$2^8\times 5^3\times 7^1\times {\mathrm{4421}}^1$

素因数の和:4459

約数の個数: 144

約数和(自身を含む): 2820033216

約数和(自身を除く): 1829729216

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 125, 128, 140, 160, 175, 200, 224, 250, 256, 280, 320, 350, 400, 448, 500, 560, 640, 700, 800, 875, 896, 1000, 1120, 1280, 1400, 1600, 1750, 1792, 2000, 2240, 2800, 3200, 3500, 4000, 4421, 4480, 5600, 6400, 7000, 8000, 8842, 8960, 11200, 14000, 16000, 17684, 22105, 22400, 28000, 30947, 32000, 35368, 44210, 44800, 56000, 61894, 70736, 88420, 110525, 112000, 123788, 141472, 154735, 176840, 221050, 224000, 247576, 282944, 309470, 353680, 442100, 495152, 552625, 565888, 618940, 707360, 773675, 884200, 990304, 1105250, 1131776, 1237880, 1414720, 1547350, 1768400, 1980608, 2210500, 2475760, 2829440, 3094700, 3536800, 3868375, 3961216, 4421000, 4951520, 5658880, 6189400, 7073600, 7736750, 7922432, 8842000, 9903040, 12378800, 14147200, 15473500, 17684000, 19806080, 24757600, 28294400, 30947000, 35368000, 39612160, 49515200, 61894000, 70736000, 99030400, 123788000, 141472000, 198060800, 247576000, 495152000, 990304000]

約数ペア:

[(1, 990304000), (2, 495152000), (4, 247576000), (5, 198060800), (7, 141472000), (8, 123788000), (10, 99030400), (14, 70736000), (16, 61894000), (20, 49515200), (25, 39612160), (28, 35368000), (32, 30947000), (35, 28294400), (40, 24757600), (50, 19806080), (56, 17684000), (64, 15473500), (70, 14147200), (80, 12378800), (100, 9903040), (112, 8842000), (125, 7922432), (128, 7736750), (140, 7073600), (160, 6189400), (175, 5658880), (200, 4951520), (224, 4421000), (250, 3961216), (256, 3868375), (280, 3536800), (320, 3094700), (350, 2829440), (400, 2475760), (448, 2210500), (500, 1980608), (560, 1768400), (640, 1547350), (700, 1414720), (800, 1237880), (875, 1131776), (896, 1105250), (1000, 990304), (1120, 884200), (1280, 773675), (1400, 707360), (1600, 618940), (1750, 565888), (1792, 552625), (2000, 495152), (2240, 442100), (2800, 353680), (3200, 309470), (3500, 282944), (4000, 247576), (4421, 224000), (4480, 221050), (5600, 176840), (6400, 154735), (7000, 141472), (8000, 123788), (8842, 112000), (8960, 110525), (11200, 88420), (14000, 70736), (16000, 61894), (17684, 56000), (22105, 44800), (22400, 44210), (28000, 35368), (30947, 32000)]