639327691808

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{35740591}}^1$

素因数の和:35740657

約数の個数: 48

約数和(自身を含む): 1387020894336

約数和(自身を除く): 747693202528

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 86, 104, 172, 208, 344, 416, 559, 688, 1118, 1376, 2236, 4472, 8944, 17888, 35740591, 71481182, 142962364, 285924728, 464627683, 571849456, 929255366, 1143698912, 1536845413, 1858510732, 3073690826, 3717021464, 6147381652, 7434042928, 12294763304, 14868085856, 19978990369, 24589526608, 39957980738, 49179053216, 79915961476, 159831922952, 319663845904, 639327691808]

約数ペア:

[(1, 639327691808), (2, 319663845904), (4, 159831922952), (8, 79915961476), (13, 49179053216), (16, 39957980738), (26, 24589526608), (32, 19978990369), (43, 14868085856), (52, 12294763304), (86, 7434042928), (104, 6147381652), (172, 3717021464), (208, 3073690826), (344, 1858510732), (416, 1536845413), (559, 1143698912), (688, 929255366), (1118, 571849456), (1376, 464627683), (2236, 285924728), (4472, 142962364), (8944, 71481182), (17888, 35740591)]