204906880

素因数分解:

$2^7\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2521}}^1$

素因数の和:2667

約数の個数: 64

約数和(自身を含む): 493908480

約数和(自身を除く): 289001600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 320, 508, 635, 640, 1016, 1270, 2032, 2521, 2540, 4064, 5042, 5080, 8128, 10084, 10160, 12605, 16256, 20168, 20320, 25210, 40336, 40640, 50420, 80672, 81280, 100840, 161344, 201680, 320167, 322688, 403360, 640334, 806720, 1280668, 1600835, 1613440, 2561336, 3201670, 5122672, 6403340, 10245344, 12806680, 20490688, 25613360, 40981376, 51226720, 102453440, 204906880]

約数ペア:

[(1, 204906880), (2, 102453440), (4, 51226720), (5, 40981376), (8, 25613360), (10, 20490688), (16, 12806680), (20, 10245344), (32, 6403340), (40, 5122672), (64, 3201670), (80, 2561336), (127, 1613440), (128, 1600835), (160, 1280668), (254, 806720), (320, 640334), (508, 403360), (635, 322688), (640, 320167), (1016, 201680), (1270, 161344), (2032, 100840), (2521, 81280), (2540, 80672), (4064, 50420), (5042, 40640), (5080, 40336), (8128, 25210), (10084, 20320), (10160, 20168), (12605, 16256)]