255381760

素因数分解:

$2^8\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1571}}^1$

素因数の和:1719

約数の個数: 72

約数和(自身を含む): 616928256

約数和(自身を除く): 361546496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 320, 508, 635, 640, 1016, 1270, 1280, 1571, 2032, 2540, 3142, 4064, 5080, 6284, 7855, 8128, 10160, 12568, 15710, 16256, 20320, 25136, 31420, 32512, 40640, 50272, 62840, 81280, 100544, 125680, 162560, 199517, 201088, 251360, 399034, 402176, 502720, 798068, 997585, 1005440, 1596136, 1995170, 2010880, 3192272, 3990340, 6384544, 7980680, 12769088, 15961360, 25538176, 31922720, 51076352, 63845440, 127690880, 255381760]

約数ペア:

[(1, 255381760), (2, 127690880), (4, 63845440), (5, 51076352), (8, 31922720), (10, 25538176), (16, 15961360), (20, 12769088), (32, 7980680), (40, 6384544), (64, 3990340), (80, 3192272), (127, 2010880), (128, 1995170), (160, 1596136), (254, 1005440), (256, 997585), (320, 798068), (508, 502720), (635, 402176), (640, 399034), (1016, 251360), (1270, 201088), (1280, 199517), (1571, 162560), (2032, 125680), (2540, 100544), (3142, 81280), (4064, 62840), (5080, 50272), (6284, 40640), (7855, 32512), (8128, 31420), (10160, 25136), (12568, 20320), (15710, 16256)]