78090100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{70991}}^1$

素因数の和:71016

約数の個数: 36

約数和(自身を含む): 184863168

約数和(自身を除く): 106773068

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 70991, 141982, 283964, 354955, 709910, 780901, 1419820, 1561802, 1774775, 3123604, 3549550, 3904505, 7099100, 7809010, 15618020, 19522525, 39045050, 78090100]

約数ペア:

[(1, 78090100), (2, 39045050), (4, 19522525), (5, 15618020), (10, 7809010), (11, 7099100), (20, 3904505), (22, 3549550), (25, 3123604), (44, 1774775), (50, 1561802), (55, 1419820), (100, 780901), (110, 709910), (220, 354955), (275, 283964), (550, 141982), (1100, 70991)]