646219868

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{52813}}^1$

素因数の和:52866

約数の個数: 48

約数和(自身を含む): 1419640320

約数和(自身を除く): 773420452

約数列:

[1, 2, 4, 7, 14, 19, 23, 28, 38, 46, 76, 92, 133, 161, 266, 322, 437, 532, 644, 874, 1748, 3059, 6118, 12236, 52813, 105626, 211252, 369691, 739382, 1003447, 1214699, 1478764, 2006894, 2429398, 4013788, 4858796, 7024129, 8502893, 14048258, 17005786, 23079281, 28096516, 34011572, 46158562, 92317124, 161554967, 323109934, 646219868]

約数ペア:

[(1, 646219868), (2, 323109934), (4, 161554967), (7, 92317124), (14, 46158562), (19, 34011572), (23, 28096516), (28, 23079281), (38, 17005786), (46, 14048258), (76, 8502893), (92, 7024129), (133, 4858796), (161, 4013788), (266, 2429398), (322, 2006894), (437, 1478764), (532, 1214699), (644, 1003447), (874, 739382), (1748, 369691), (3059, 211252), (6118, 105626), (12236, 52813)]