81049600

素因数分解:

$2^{11}\times 5^2\times {\mathrm{1583}}^1$

素因数の和:1615

約数の個数: 72

約数和(自身を含む): 201080880

約数和(自身を除く): 120031280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 1024, 1280, 1583, 1600, 2048, 2560, 3166, 3200, 5120, 6332, 6400, 7915, 10240, 12664, 12800, 15830, 25328, 25600, 31660, 39575, 50656, 51200, 63320, 79150, 101312, 126640, 158300, 202624, 253280, 316600, 405248, 506560, 633200, 810496, 1013120, 1266400, 1620992, 2026240, 2532800, 3241984, 4052480, 5065600, 8104960, 10131200, 16209920, 20262400, 40524800, 81049600]

約数ペア:

[(1, 81049600), (2, 40524800), (4, 20262400), (5, 16209920), (8, 10131200), (10, 8104960), (16, 5065600), (20, 4052480), (25, 3241984), (32, 2532800), (40, 2026240), (50, 1620992), (64, 1266400), (80, 1013120), (100, 810496), (128, 633200), (160, 506560), (200, 405248), (256, 316600), (320, 253280), (400, 202624), (512, 158300), (640, 126640), (800, 101312), (1024, 79150), (1280, 63320), (1583, 51200), (1600, 50656), (2048, 39575), (2560, 31660), (3166, 25600), (3200, 25328), (5120, 15830), (6332, 12800), (6400, 12664), (7915, 10240)]