22720000

素因数分解:

$2^9\times 5^4\times {\mathrm{71}}^1$

素因数の和:109

約数の個数: 100

約数和(自身を含む): 57525336

約数和(自身を除く): 34805336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 71, 80, 100, 125, 128, 142, 160, 200, 250, 256, 284, 320, 355, 400, 500, 512, 568, 625, 640, 710, 800, 1000, 1136, 1250, 1280, 1420, 1600, 1775, 2000, 2272, 2500, 2560, 2840, 3200, 3550, 4000, 4544, 5000, 5680, 6400, 7100, 8000, 8875, 9088, 10000, 11360, 12800, 14200, 16000, 17750, 18176, 20000, 22720, 28400, 32000, 35500, 36352, 40000, 44375, 45440, 56800, 64000, 71000, 80000, 88750, 90880, 113600, 142000, 160000, 177500, 181760, 227200, 284000, 320000, 355000, 454400, 568000, 710000, 908800, 1136000, 1420000, 2272000, 2840000, 4544000, 5680000, 11360000, 22720000]

約数ペア:

[(1, 22720000), (2, 11360000), (4, 5680000), (5, 4544000), (8, 2840000), (10, 2272000), (16, 1420000), (20, 1136000), (25, 908800), (32, 710000), (40, 568000), (50, 454400), (64, 355000), (71, 320000), (80, 284000), (100, 227200), (125, 181760), (128, 177500), (142, 160000), (160, 142000), (200, 113600), (250, 90880), (256, 88750), (284, 80000), (320, 71000), (355, 64000), (400, 56800), (500, 45440), (512, 44375), (568, 40000), (625, 36352), (640, 35500), (710, 32000), (800, 28400), (1000, 22720), (1136, 20000), (1250, 18176), (1280, 17750), (1420, 16000), (1600, 14200), (1775, 12800), (2000, 11360), (2272, 10000), (2500, 9088), (2560, 8875), (2840, 8000), (3200, 7100), (3550, 6400), (4000, 5680), (4544, 5000)]