4065809920

素因数分解:

$2^9\times 5^1\times {\mathrm{761}}^1\times {\mathrm{2087}}^1$

素因数の和:2871

約数の個数: 80

約数和(自身を含む): 9765901728

約数和(自身を除く): 5700091808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 761, 1280, 1522, 2087, 2560, 3044, 3805, 4174, 6088, 7610, 8348, 10435, 12176, 15220, 16696, 20870, 24352, 30440, 33392, 41740, 48704, 60880, 66784, 83480, 97408, 121760, 133568, 166960, 194816, 243520, 267136, 333920, 389632, 487040, 534272, 667840, 974080, 1068544, 1335680, 1588207, 1948160, 2671360, 3176414, 5342720, 6352828, 7941035, 12705656, 15882070, 25411312, 31764140, 50822624, 63528280, 101645248, 127056560, 203290496, 254113120, 406580992, 508226240, 813161984, 1016452480, 2032904960, 4065809920]

約数ペア:

[(1, 4065809920), (2, 2032904960), (4, 1016452480), (5, 813161984), (8, 508226240), (10, 406580992), (16, 254113120), (20, 203290496), (32, 127056560), (40, 101645248), (64, 63528280), (80, 50822624), (128, 31764140), (160, 25411312), (256, 15882070), (320, 12705656), (512, 7941035), (640, 6352828), (761, 5342720), (1280, 3176414), (1522, 2671360), (2087, 1948160), (2560, 1588207), (3044, 1335680), (3805, 1068544), (4174, 974080), (6088, 667840), (7610, 534272), (8348, 487040), (10435, 389632), (12176, 333920), (15220, 267136), (16696, 243520), (20870, 194816), (24352, 166960), (30440, 133568), (33392, 121760), (41740, 97408), (48704, 83480), (60880, 66784)]