39997568

素因数分解:

$2^7\times {\mathrm{13}}^2\times {\mathrm{43}}^2$

素因数の和:126

約数の個数: 72

約数和(自身を含む): 88336845

約数和(自身を除く): 48339277

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 64, 86, 104, 128, 169, 172, 208, 338, 344, 416, 559, 676, 688, 832, 1118, 1352, 1376, 1664, 1849, 2236, 2704, 2752, 3698, 4472, 5408, 5504, 7267, 7396, 8944, 10816, 14534, 14792, 17888, 21632, 24037, 29068, 29584, 35776, 48074, 58136, 59168, 71552, 96148, 116272, 118336, 192296, 232544, 236672, 312481, 384592, 465088, 624962, 769184, 930176, 1249924, 1538368, 2499848, 3076736, 4999696, 9999392, 19998784, 39997568]

約数ペア:

[(1, 39997568), (2, 19998784), (4, 9999392), (8, 4999696), (13, 3076736), (16, 2499848), (26, 1538368), (32, 1249924), (43, 930176), (52, 769184), (64, 624962), (86, 465088), (104, 384592), (128, 312481), (169, 236672), (172, 232544), (208, 192296), (338, 118336), (344, 116272), (416, 96148), (559, 71552), (676, 59168), (688, 58136), (832, 48074), (1118, 35776), (1352, 29584), (1376, 29068), (1664, 24037), (1849, 21632), (2236, 17888), (2704, 14792), (2752, 14534), (3698, 10816), (4472, 8944), (5408, 7396), (5504, 7267)]