82776280

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{15797}}^1$

素因数の和:15939

約数の個数: 32

約数和(自身を含む): 187680240

約数和(自身を除く): 104903960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 15797, 31594, 63188, 78985, 126376, 157970, 315940, 631880, 2069407, 4138814, 8277628, 10347035, 16555256, 20694070, 41388140, 82776280]

約数ペア:

[(1, 82776280), (2, 41388140), (4, 20694070), (5, 16555256), (8, 10347035), (10, 8277628), (20, 4138814), (40, 2069407), (131, 631880), (262, 315940), (524, 157970), (655, 126376), (1048, 78985), (1310, 63188), (2620, 31594), (5240, 15797)]