161564416

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1129}}^1$

素因数の和:1201

約数の個数: 72

約数和(自身を含む): 355696880

約数和(自身を除く): 194132464

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 64, 86, 104, 128, 172, 208, 256, 344, 416, 559, 688, 832, 1118, 1129, 1376, 1664, 2236, 2258, 2752, 3328, 4472, 4516, 5504, 8944, 9032, 11008, 14677, 17888, 18064, 29354, 35776, 36128, 48547, 58708, 71552, 72256, 97094, 117416, 143104, 144512, 194188, 234832, 289024, 388376, 469664, 631111, 776752, 939328, 1262222, 1553504, 1878656, 2524444, 3107008, 3757312, 5048888, 6214016, 10097776, 12428032, 20195552, 40391104, 80782208, 161564416]

約数ペア:

[(1, 161564416), (2, 80782208), (4, 40391104), (8, 20195552), (13, 12428032), (16, 10097776), (26, 6214016), (32, 5048888), (43, 3757312), (52, 3107008), (64, 2524444), (86, 1878656), (104, 1553504), (128, 1262222), (172, 939328), (208, 776752), (256, 631111), (344, 469664), (416, 388376), (559, 289024), (688, 234832), (832, 194188), (1118, 144512), (1129, 143104), (1376, 117416), (1664, 97094), (2236, 72256), (2258, 71552), (2752, 58708), (3328, 48547), (4472, 36128), (4516, 35776), (5504, 29354), (8944, 18064), (9032, 17888), (11008, 14677)]