81676972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^3\times {\mathrm{229}}^1$

素因数の和:303

約数の個数: 48

約数和(自身を含む): 163189600

約数和(自身を除く): 81512628

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 229, 247, 361, 458, 494, 722, 916, 988, 1444, 2977, 4351, 4693, 5954, 6859, 8702, 9386, 11908, 13718, 17404, 18772, 27436, 56563, 82669, 89167, 113126, 165338, 178334, 226252, 330676, 356668, 1074697, 1570711, 2149394, 3141422, 4298788, 6282844, 20419243, 40838486, 81676972]

約数ペア:

[(1, 81676972), (2, 40838486), (4, 20419243), (13, 6282844), (19, 4298788), (26, 3141422), (38, 2149394), (52, 1570711), (76, 1074697), (229, 356668), (247, 330676), (361, 226252), (458, 178334), (494, 165338), (722, 113126), (916, 89167), (988, 82669), (1444, 56563), (2977, 27436), (4351, 18772), (4693, 17404), (5954, 13718), (6859, 11908), (8702, 9386)]