78144872

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{557}}^1$

素因数の和:666

約数の個数: 64

約数和(自身を含む): 168739200

約数和(自身を除く): 90594328

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 71, 76, 104, 142, 152, 247, 284, 494, 557, 568, 923, 988, 1114, 1349, 1846, 1976, 2228, 2698, 3692, 4456, 5396, 7241, 7384, 10583, 10792, 14482, 17537, 21166, 28964, 35074, 39547, 42332, 57928, 70148, 79094, 84664, 137579, 140296, 158188, 275158, 316376, 514111, 550316, 751393, 1028222, 1100632, 1502786, 2056444, 3005572, 4112888, 6011144, 9768109, 19536218, 39072436, 78144872]

約数ペア:

[(1, 78144872), (2, 39072436), (4, 19536218), (8, 9768109), (13, 6011144), (19, 4112888), (26, 3005572), (38, 2056444), (52, 1502786), (71, 1100632), (76, 1028222), (104, 751393), (142, 550316), (152, 514111), (247, 316376), (284, 275158), (494, 158188), (557, 140296), (568, 137579), (923, 84664), (988, 79094), (1114, 70148), (1349, 57928), (1846, 42332), (1976, 39547), (2228, 35074), (2698, 28964), (3692, 21166), (4456, 17537), (5396, 14482), (7241, 10792), (7384, 10583)]