20804829136

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{172157}}^1$

素因数の和:172268

約数の個数: 80

約数和(自身を含む): 50209536384

約数和(自身を除く): 29404707248

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 83, 91, 104, 112, 166, 182, 208, 332, 364, 581, 664, 728, 1079, 1162, 1328, 1456, 2158, 2324, 4316, 4648, 7553, 8632, 9296, 15106, 17264, 30212, 60424, 120848, 172157, 344314, 688628, 1205099, 1377256, 2238041, 2410198, 2754512, 4476082, 4820396, 8952164, 9640792, 14289031, 15666287, 17904328, 19281584, 28578062, 31332574, 35808656, 57156124, 62665148, 100023217, 114312248, 125330296, 185757403, 200046434, 228624496, 250660592, 371514806, 400092868, 743029612, 800185736, 1300301821, 1486059224, 1600371472, 2600603642, 2972118448, 5201207284, 10402414568, 20804829136]

約数ペア:

[(1, 20804829136), (2, 10402414568), (4, 5201207284), (7, 2972118448), (8, 2600603642), (13, 1600371472), (14, 1486059224), (16, 1300301821), (26, 800185736), (28, 743029612), (52, 400092868), (56, 371514806), (83, 250660592), (91, 228624496), (104, 200046434), (112, 185757403), (166, 125330296), (182, 114312248), (208, 100023217), (332, 62665148), (364, 57156124), (581, 35808656), (664, 31332574), (728, 28578062), (1079, 19281584), (1162, 17904328), (1328, 15666287), (1456, 14289031), (2158, 9640792), (2324, 8952164), (4316, 4820396), (4648, 4476082), (7553, 2754512), (8632, 2410198), (9296, 2238041), (15106, 1377256), (17264, 1205099), (30212, 688628), (60424, 344314), (120848, 172157)]