19828700

素因数分解:

$2^2\times 5^2\times {\mathrm{83}}^1\times {\mathrm{2389}}^1$

素因数の和:2486

約数の個数: 36

約数和(自身を含む): 43564920

約数和(自身を除く): 23736220

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 83, 100, 166, 332, 415, 830, 1660, 2075, 2389, 4150, 4778, 8300, 9556, 11945, 23890, 47780, 59725, 119450, 198287, 238900, 396574, 793148, 991435, 1982870, 3965740, 4957175, 9914350, 19828700]

約数ペア:

[(1, 19828700), (2, 9914350), (4, 4957175), (5, 3965740), (10, 1982870), (20, 991435), (25, 793148), (50, 396574), (83, 238900), (100, 198287), (166, 119450), (332, 59725), (415, 47780), (830, 23890), (1660, 11945), (2075, 9556), (2389, 8300), (4150, 4778)]