639768

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:112

約数の個数: 64

約数和(自身を含む): 1785600

約数和(自身を除く): 1145832

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 23, 24, 38, 46, 57, 61, 69, 76, 92, 114, 122, 138, 152, 183, 184, 228, 244, 276, 366, 437, 456, 488, 552, 732, 874, 1159, 1311, 1403, 1464, 1748, 2318, 2622, 2806, 3477, 3496, 4209, 4636, 5244, 5612, 6954, 8418, 9272, 10488, 11224, 13908, 16836, 26657, 27816, 33672, 53314, 79971, 106628, 159942, 213256, 319884, 639768]

約数ペア:

[(1, 639768), (2, 319884), (3, 213256), (4, 159942), (6, 106628), (8, 79971), (12, 53314), (19, 33672), (23, 27816), (24, 26657), (38, 16836), (46, 13908), (57, 11224), (61, 10488), (69, 9272), (76, 8418), (92, 6954), (114, 5612), (122, 5244), (138, 4636), (152, 4209), (183, 3496), (184, 3477), (228, 2806), (244, 2622), (276, 2318), (366, 1748), (437, 1464), (456, 1403), (488, 1311), (552, 1159), (732, 874)]