80786680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3613}}^1$

素因数の和:3680

約数の個数: 64

約数和(自身を含む): 200360160

約数和(自身を除く): 119573480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 430, 520, 559, 860, 1118, 1720, 2236, 2795, 3613, 4472, 5590, 7226, 11180, 14452, 18065, 22360, 28904, 36130, 46969, 72260, 93938, 144520, 155359, 187876, 234845, 310718, 375752, 469690, 621436, 776795, 939380, 1242872, 1553590, 1878760, 2019667, 3107180, 4039334, 6214360, 8078668, 10098335, 16157336, 20196670, 40393340, 80786680]

約数ペア:

[(1, 80786680), (2, 40393340), (4, 20196670), (5, 16157336), (8, 10098335), (10, 8078668), (13, 6214360), (20, 4039334), (26, 3107180), (40, 2019667), (43, 1878760), (52, 1553590), (65, 1242872), (86, 939380), (104, 776795), (130, 621436), (172, 469690), (215, 375752), (260, 310718), (344, 234845), (430, 187876), (520, 155359), (559, 144520), (860, 93938), (1118, 72260), (1720, 46969), (2236, 36130), (2795, 28904), (3613, 22360), (4472, 18065), (5590, 14452), (7226, 11180)]