64524800

素因数分解:

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

素因数の和:170

約数の個数: 90

約数和(自身を含む): 162148569

約数和(自身を除く): 97623769

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 71, 80, 100, 128, 142, 160, 200, 256, 284, 320, 355, 400, 512, 568, 640, 710, 800, 1136, 1280, 1420, 1600, 1775, 2272, 2560, 2840, 3200, 3550, 4544, 5041, 5680, 6400, 7100, 9088, 10082, 11360, 12800, 14200, 18176, 20164, 22720, 25205, 28400, 36352, 40328, 45440, 50410, 56800, 80656, 90880, 100820, 113600, 126025, 161312, 181760, 201640, 227200, 252050, 322624, 403280, 454400, 504100, 645248, 806560, 908800, 1008200, 1290496, 1613120, 2016400, 2580992, 3226240, 4032800, 6452480, 8065600, 12904960, 16131200, 32262400, 64524800]

約数ペア:

[(1, 64524800), (2, 32262400), (4, 16131200), (5, 12904960), (8, 8065600), (10, 6452480), (16, 4032800), (20, 3226240), (25, 2580992), (32, 2016400), (40, 1613120), (50, 1290496), (64, 1008200), (71, 908800), (80, 806560), (100, 645248), (128, 504100), (142, 454400), (160, 403280), (200, 322624), (256, 252050), (284, 227200), (320, 201640), (355, 181760), (400, 161312), (512, 126025), (568, 113600), (640, 100820), (710, 90880), (800, 80656), (1136, 56800), (1280, 50410), (1420, 45440), (1600, 40328), (1775, 36352), (2272, 28400), (2560, 25205), (2840, 22720), (3200, 20164), (3550, 18176), (4544, 14200), (5041, 12800), (5680, 11360), (6400, 10082), (7100, 9088)]